diff --git a/src/CONST/index.ts b/src/CONST/index.ts
index 57c91c0435dd..8ea88cd543cc 100644
--- a/src/CONST/index.ts
+++ b/src/CONST/index.ts
@@ -2925,6 +2925,7 @@ const CONST = {
     },
 
     CONCIERGE_DISPLAY_NAME: 'Concierge',
+    HIDDEN_DISPLAY_NAME: 'Hidden',
     CONCIERGE_GREETING_ACTION_ID: 'concierge-greeting',
 
     INTEGRATION_ENTITY_MAP_TYPES: {
diff --git a/src/components/ReportActionAvatars/useReportActionAvatars.ts b/src/components/ReportActionAvatars/useReportActionAvatars.ts
index 9f9c7516facf..38642b6fa1ef 100644
--- a/src/components/ReportActionAvatars/useReportActionAvatars.ts
+++ b/src/components/ReportActionAvatars/useReportActionAvatars.ts
@@ -218,7 +218,7 @@ function useReportActionAvatars({
     const accountID = reportPreviewSenderID || (actorAccountID ?? CONST.DEFAULT_NUMBER_ID);
     const {avatar, fallbackIcon, login} = personalDetails?.[delegatePersonalDetails ? delegatePersonalDetails.accountID : accountID] ?? {};
 
-    const defaultDisplayName = getDisplayNameForParticipant({accountID, personalDetailsData: personalDetails, formatPhoneNumber, translate}) ?? '';
+    const defaultDisplayName = getDisplayNameForParticipant({accountID, personalDetailsData: personalDetails, formatPhoneNumber, hiddenTranslation: translate('common.hidden')}) ?? '';
     const invoiceReport = [iouReport, chatReport, reportChatReport].find((susReport) => isInvoiceReport(susReport) || susReport?.chatType === CONST.REPORT.TYPE.INVOICE);
     const isNestedInInvoiceReport = !!invoiceReport && !isChatThread(report);
     const isInvoiceReportActor = isAInvoiceReport && (!actorAccountID || displayAllActors || isAReportPreviewAction);
diff --git a/src/components/ReportActionItem/MoneyRequestReportPreview/usePreviewMessageAnimation.ts b/src/components/ReportActionItem/MoneyRequestReportPreview/usePreviewMessageAnimation.ts
index 6d58d8a3fec4..fc5e1e24ea21 100644
--- a/src/components/ReportActionItem/MoneyRequestReportPreview/usePreviewMessageAnimation.ts
+++ b/src/components/ReportActionItem/MoneyRequestReportPreview/usePreviewMessageAnimation.ts
@@ -128,7 +128,7 @@ function usePreviewMessageAnimation({
                 accountID: managerID,
                 shouldUseShortForm: true,
                 formatPhoneNumber,
-                translate,
+                hiddenTranslation: translate('common.hidden'),
             });
         }
 
@@ -144,7 +144,7 @@ function usePreviewMessageAnimation({
                 accountID: chatReport?.ownerAccountID,
                 shouldUseShortForm: true,
                 formatPhoneNumber,
-                translate,
+                hiddenTranslation: translate('common.hidden'),
             });
         }
         return translate(paymentVerb, payerOrApproverName);
diff --git a/src/components/ReportActionItem/TaskView.tsx b/src/components/ReportActionItem/TaskView.tsx
index 107284190694..0dba7c1cd4d5 100644
--- a/src/components/ReportActionItem/TaskView.tsx
+++ b/src/components/ReportActionItem/TaskView.tsx
@@ -273,7 +273,7 @@ function TaskView({report, parentReport, action}: TaskViewProps) {
                             {report?.managerID ? (
                                 <MenuItem
                                     label={translate('task.assignee')}
-                                    title={getDisplayNameForParticipant({accountID: report.managerID, formatPhoneNumber, translate})}
+                                    title={getDisplayNameForParticipant({accountID: report.managerID, formatPhoneNumber, hiddenTranslation: translate('common.hidden')})}
                                     iconAccountID={report.managerID}
                                     iconType={CONST.ICON_TYPE_AVATAR}
                                     avatarSize={CONST.AVATAR_SIZE.X_SMALL}
diff --git a/src/components/SelectionList/ListItem/UserSelectionListItem.tsx b/src/components/SelectionList/ListItem/UserSelectionListItem.tsx
index d29a5b594fc6..3faa24ad6a7c 100644
--- a/src/components/SelectionList/ListItem/UserSelectionListItem.tsx
+++ b/src/components/SelectionList/ListItem/UserSelectionListItem.tsx
@@ -58,7 +58,7 @@ function UserSelectionListItem<TItem extends ListItem>({
         return getDisplayNameForParticipant({
             accountID: item.accountID ?? CONST.DEFAULT_NUMBER_ID,
             formatPhoneNumber,
-            translate,
+            hiddenTranslation: translate('common.hidden'),
         });
     }, [formatPhoneNumber, item.accountID, translate]);
 
diff --git a/src/libs/NextStepUtils.ts b/src/libs/NextStepUtils.ts
index 90e7398dd528..8ce067caea0b 100644
--- a/src/libs/NextStepUtils.ts
+++ b/src/libs/NextStepUtils.ts
@@ -65,7 +65,7 @@ function buildNextStepMessage(
     formatPhoneNumber: LocaleContextProps['formatPhoneNumber'],
 ): string {
     // Escape actor name to prevent HTML injection since this will be rendered as HTML
-    const actor = Str.safeEscape(getDisplayNameForParticipant({accountID: nextStep.actorAccountID, formatPhoneNumber, translate}) ?? '');
+    const actor = Str.safeEscape(getDisplayNameForParticipant({accountID: nextStep.actorAccountID, formatPhoneNumber, hiddenTranslation: translate('common.hidden')}) ?? '');
     let actorType: ValueOf<typeof CONST.NEXT_STEP.ACTOR_TYPE>;
     if (nextStep.actorAccountID === currentUserAccountID) {
         actorType = CONST.NEXT_STEP.ACTOR_TYPE.CURRENT_USER;
diff --git a/src/libs/OptionsListUtils/index.ts b/src/libs/OptionsListUtils/index.ts
index 33a557b3ebdf..9ded8fd59b33 100644
--- a/src/libs/OptionsListUtils/index.ts
+++ b/src/libs/OptionsListUtils/index.ts
@@ -1211,6 +1211,10 @@ function createOption({
     let reportName;
     result.participantsList = personalDetailList;
 
+    // Resolve display-name translations once per option, then pass the strings to getDisplayNameForParticipant.
+    const hiddenText = translateFn('common.hidden');
+    const youText = translateFn('common.you').toLowerCase();
+
     if (report) {
         result.private_isArchived = privateIsArchived;
         result.keyForList = String(report.reportID);
@@ -1271,12 +1275,13 @@ function createOption({
                       shouldAddCurrentUserPostfix: true,
                       personalDetailsData: personalDetails ?? undefined,
                       formatPhoneNumber: formatPhoneNumberPhoneUtils,
-                      translate: translateFn,
+                      hiddenTranslation: hiddenText,
+                      youTranslation: youText,
                   })
                 : '');
 
         reportName = showPersonalDetails
-            ? getDisplayNameForParticipant({accountID: accountIDs.at(0), formatPhoneNumber: formatPhoneNumberPhoneUtils, translate: translateFn}) ||
+            ? getDisplayNameForParticipant({accountID: accountIDs.at(0), formatPhoneNumber: formatPhoneNumberPhoneUtils, hiddenTranslation: hiddenText}) ||
               formatPhoneNumberPhoneUtils(personalDetail?.login ?? '')
             : computedReportName;
     } else {
@@ -1285,7 +1290,7 @@ function createOption({
                 accountID: accountIDs.at(0),
                 personalDetailsData: personalDetails ?? undefined,
                 formatPhoneNumber: formatPhoneNumberPhoneUtils,
-                translate: translateFn,
+                hiddenTranslation: hiddenText,
             }) || formatPhoneNumberPhoneUtils(personalDetail?.login ?? '');
         result.keyForList = String(accountIDs.at(0));
 
diff --git a/src/libs/PersonalDetailOptionsListUtils/index.ts b/src/libs/PersonalDetailOptionsListUtils/index.ts
index 109bfdee7331..71b3d2bf4cea 100644
--- a/src/libs/PersonalDetailOptionsListUtils/index.ts
+++ b/src/libs/PersonalDetailOptionsListUtils/index.ts
@@ -78,7 +78,7 @@ function createOption(
             accountID: personalDetail.accountID,
             formatPhoneNumber,
             personalDetailsData: {[personalDetail.accountID]: personalDetail},
-            translate,
+            hiddenTranslation: translate?.('common.hidden'),
         }) || formatPhoneNumber(personalDetail.login ?? '');
     result.icons = [
         {
diff --git a/src/libs/PersonalDetailsUtils.ts b/src/libs/PersonalDetailsUtils.ts
index 71709d6292b3..38e241d7f02c 100644
--- a/src/libs/PersonalDetailsUtils.ts
+++ b/src/libs/PersonalDetailsUtils.ts
@@ -15,7 +15,6 @@ import {Str} from 'expensify-common';
 import Onyx from 'react-native-onyx';
 
 import {getCountryCode} from './CountryUtils';
-import {translateLocal} from './Localize';
 import {areEmailsFromSamePrivateDomain} from './LoginUtils';
 import {addSMSDomainIfPhoneNumber, parsePhoneNumber} from './PhoneNumber';
 import {getDefaultAvatarURL} from './UserAvatarUtils';
@@ -44,76 +43,15 @@ Onyx.connect({
     },
 });
 
-let hiddenTranslation = '';
-let youTranslation = '';
-
-Onyx.connect({
-    key: ONYXKEYS.RAM_ONLY_ARE_TRANSLATIONS_LOADING,
-    callback: (value) => {
-        if (value ?? true) {
-            return;
-        }
-        hiddenTranslation = translateLocal('common.hidden');
-        youTranslation = translateLocal('common.you').toLowerCase();
-    },
-});
-
 const regexMergedAccount = new RegExp(CONST.REGEX.MERGED_ACCOUNT_PREFIX);
 
-function getDisplayNameOrDefault(
-    passedPersonalDetails?: Partial<PersonalDetails> | null,
-    defaultValue = '',
-    shouldFallbackToHidden = true,
-    shouldAddCurrentUserPostfix = false,
-    youAfterTranslation = youTranslation,
-): string {
-    let displayName = passedPersonalDetails?.displayName ?? '';
-
-    let login = passedPersonalDetails?.login ?? '';
-
-    // If the displayName starts with the merged account prefix, remove it.
-    if (regexMergedAccount.test(displayName)) {
-        // Remove the merged account prefix from the displayName.
-        displayName = displayName.replaceAll(CONST.REGEX.MERGED_ACCOUNT_PREFIX, '');
-    }
-
-    // If the displayName is not set by the user, the backend sets the displayName same as the login so
-    // we need to remove the sms domain from the displayName if it is an sms login.
-    if (Str.isSMSLogin(login)) {
-        if (displayName === login) {
-            displayName = Str.removeSMSDomain(displayName);
-        }
-        login = Str.removeSMSDomain(login);
-    }
-
-    if (shouldAddCurrentUserPostfix && !!displayName) {
-        displayName = `${displayName} (${youAfterTranslation})`;
-    }
-
-    if (passedPersonalDetails?.accountID === CONST.ACCOUNT_ID.CONCIERGE) {
-        displayName = CONST.CONCIERGE_DISPLAY_NAME;
-    }
-
-    if (displayName) {
-        return displayName;
-    }
-
-    if (defaultValue) {
-        return defaultValue;
-    }
-
-    if (login) {
-        return login;
-    }
-    return shouldFallbackToHidden ? hiddenTranslation : '';
-}
-
 function temporaryGetDisplayNameOrDefault({
     passedPersonalDetails,
     defaultValue = '',
     shouldFallbackToHidden = true,
     shouldAddCurrentUserPostfix = false,
     youAfterTranslation,
+    hiddenAfterTranslation,
     translate,
     formatPhoneNumber,
 }: {
@@ -122,11 +60,12 @@ function temporaryGetDisplayNameOrDefault({
     shouldFallbackToHidden?: boolean;
     shouldAddCurrentUserPostfix?: boolean;
     youAfterTranslation?: string;
-    translate: LocalizedTranslate;
+    hiddenAfterTranslation?: string;
+    translate?: LocalizedTranslate;
     formatPhoneNumber: LocaleContextProps['formatPhoneNumber'];
 }): string {
-    const temporaryHiddenTranslation = translate('common.hidden');
-    const temporaryYouTranslation = translate('common.you').toLowerCase();
+    const temporaryHiddenTranslation = hiddenAfterTranslation ?? translate?.('common.hidden') ?? '';
+    const temporaryYouTranslation = translate?.('common.you').toLowerCase();
     let displayName = passedPersonalDetails?.displayName ?? '';
 
     const login = passedPersonalDetails?.login ?? '';
@@ -577,7 +516,6 @@ function areTravelPersonalDetailsMissing(privatePersonalDetails: OnyxEntry<Priva
 }
 
 export {
-    getDisplayNameOrDefault,
     getPersonalDetailsByID,
     getPersonalDetailsByIDs,
     getParticipantsPersonalDetails,
diff --git a/src/libs/ReportNameUtils.ts b/src/libs/ReportNameUtils.ts
index da9b38a04e3e..24774816b094 100644
--- a/src/libs/ReportNameUtils.ts
+++ b/src/libs/ReportNameUtils.ts
@@ -236,7 +236,7 @@ const buildReportNameFromParticipantNames = ({
                 shouldUseShortForm: true,
                 personalDetailsData,
                 formatPhoneNumber: formatPhoneNumberPhoneUtils,
-                translate,
+                hiddenTranslation: translate('common.hidden'),
             }),
         }))
         .filter((participant) => participant.name)
@@ -247,7 +247,7 @@ const buildReportNameFromParticipantNames = ({
                     accountID,
                     personalDetailsData,
                     formatPhoneNumber: formatPhoneNumberPhoneUtils,
-                    translate,
+                    hiddenTranslation: translate('common.hidden'),
                 });
             }
             return formattedNames ? `${formattedNames}, ${name}` : name;
@@ -293,10 +293,12 @@ function getGroupChatName(
     const isMultipleParticipantReport = participantAccountIDs.length > 1;
 
     if (isMultipleParticipantReport) {
+        // Resolve the translation once, not per participant.
+        const hiddenText = translate('common.hidden');
         return participantAccountIDs
             .map(
                 (participantAccountID, index) =>
-                    getDisplayNameForParticipant({accountID: participantAccountID, shouldUseShortForm: isMultipleParticipantReport, formatPhoneNumber, translate}) ||
+                    getDisplayNameForParticipant({accountID: participantAccountID, shouldUseShortForm: isMultipleParticipantReport, formatPhoneNumber, hiddenTranslation: hiddenText}) ||
                     formatPhoneNumber(participants?.[index]?.login ?? ''),
             )
             .sort((first, second) => customCollator.compare(first ?? '', second ?? ''))
@@ -305,7 +307,7 @@ function getGroupChatName(
             .slice(0, CONST.REPORT_NAME_LIMIT)
             .concat(shouldAddEllipsis ? '...' : '');
     }
-    return translate('groupChat.defaultReportName', getDisplayNameForParticipant({accountID: participantAccountIDs.at(0), formatPhoneNumber, translate}));
+    return translate('groupChat.defaultReportName', getDisplayNameForParticipant({accountID: participantAccountIDs.at(0), formatPhoneNumber, hiddenTranslation: translate('common.hidden')}));
 }
 
 /**
@@ -324,7 +326,9 @@ function getPolicyExpenseChatName({
     const personalDetails = ownerAccountID ? personalDetailsList?.[ownerAccountID] : undefined;
     const login = personalDetails ? personalDetails.login : null;
 
-    const reportOwnerDisplayName = getDisplayNameForParticipant({accountID: ownerAccountID, shouldRemoveDomain: true, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate}) || login;
+    const reportOwnerDisplayName =
+        getDisplayNameForParticipant({accountID: ownerAccountID, shouldRemoveDomain: true, formatPhoneNumber: formatPhoneNumberPhoneUtils, hiddenTranslation: translate('common.hidden')}) ||
+        login;
 
     if (reportOwnerDisplayName) {
         return translate('workspace.common.policyExpenseChatName', reportOwnerDisplayName);
@@ -453,7 +457,8 @@ function getMoneyRequestReportName({
         const invoiceReceiverPersonalDetail = getInvoiceReceiverPersonalDetail(chatReport, personalDetailsList);
         payerOrApproverName = getInvoicePayerName(chatReport, translate, invoiceReceiverPersonalDetail, invoiceReceiverPolicy);
     } else {
-        payerOrApproverName = getDisplayNameForParticipant({accountID: report?.managerID, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate}) ?? '';
+        payerOrApproverName =
+            getDisplayNameForParticipant({accountID: report?.managerID, formatPhoneNumber: formatPhoneNumberPhoneUtils, hiddenTranslation: translate('common.hidden')}) ?? '';
     }
     const payerPaidAmountMessage = translate('iou.payerPaidAmount', formattedAmount, payerOrApproverName);
 
@@ -466,7 +471,8 @@ function getMoneyRequestReportName({
     }
 
     if (!isSettled(report?.reportID) && hasNonReimbursableTransactions(linkedTransactions)) {
-        payerOrApproverName = getDisplayNameForParticipant({accountID: report?.ownerAccountID, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate}) ?? '';
+        payerOrApproverName =
+            getDisplayNameForParticipant({accountID: report?.ownerAccountID, formatPhoneNumber: formatPhoneNumberPhoneUtils, hiddenTranslation: translate('common.hidden')}) ?? '';
         return translate('iou.payerSpentAmount', formattedAmount, payerOrApproverName);
     }
 
@@ -1185,7 +1191,8 @@ function computeReportName({
             shouldAddCurrentUserPostfix: true,
             personalDetailsData: personalDetailsList,
             formatPhoneNumber: formatPhoneNumberPhoneUtils,
-            translate,
+            hiddenTranslation: translate('common.hidden'),
+            youTranslation: translate('common.you').toLowerCase(),
         });
     }
 
diff --git a/src/libs/ReportUtils.ts b/src/libs/ReportUtils.ts
index 37bf4a9d4674..3ef2231f8de9 100644
--- a/src/libs/ReportUtils.ts
+++ b/src/libs/ReportUtils.ts
@@ -146,7 +146,7 @@ import Parser from './Parser';
 import {getParsedMessageWithShortMentions} from './ParsingUtils';
 import {getBankAccountLastFourDigits} from './PaymentUtils';
 import Permissions from './Permissions';
-import {getAccountIDsByLogins, getDisplayNameOrDefault, getLoginByAccountID, getPersonalDetailByEmail, temporaryGetDisplayNameOrDefault} from './PersonalDetailsUtils';
+import {getAccountIDsByLogins, getLoginByAccountID, getPersonalDetailByEmail, temporaryGetDisplayNameOrDefault} from './PersonalDetailsUtils';
 import {
     canSendInvoiceFromWorkspace,
     getActivePolicies,
@@ -3564,7 +3564,8 @@ function getDisplayNameForParticipant({
     personalDetailsData = allPersonalDetails,
     shouldRemoveDomain = false,
     formatPhoneNumber,
-    translate,
+    hiddenTranslation: hiddenTranslationOverride,
+    youTranslation,
 }: {
     accountID?: number;
     shouldUseShortForm?: boolean;
@@ -3573,7 +3574,14 @@ function getDisplayNameForParticipant({
     personalDetailsData?: Partial<PersonalDetailsList>;
     shouldRemoveDomain?: boolean;
     formatPhoneNumber: LocaleContextProps['formatPhoneNumber'];
-    translate?: LocalizedTranslate;
+    /**
+     * Pre-resolved "Hidden" string, passed instead of a `translate` fn. Callers resolve it once (e.g. `translate('common.hidden')`,
+     * hoisted out of loops) and pass the value; English-only persisted messages pass the English literal. Defaults to the cached
+     * module value when omitted. Mirrors `getPolicyName`'s `unavailableTranslation`.
+     */
+    hiddenTranslation?: string;
+    /** Pre-resolved lowercase "you" string for the `shouldAddCurrentUserPostfix` "(you)" suffix. */
+    youTranslation?: string;
 }): string {
     if (!accountID) {
         return '';
@@ -3606,23 +3614,24 @@ function getDisplayNameForParticipant({
     // For selfDM, we display the user's displayName followed by '(you)' as a postfix
     const shouldAddPostfix = shouldAddCurrentUserPostfix && accountID === deprecatedCurrentUserAccountID;
 
-    let longName = translate
-        ? temporaryGetDisplayNameOrDefault({
-              passedPersonalDetails: personalDetails,
-              defaultValue: formattedLogin,
-              shouldFallbackToHidden,
-              shouldAddCurrentUserPostfix: shouldAddPostfix,
-              translate,
-              formatPhoneNumber,
-          })
-        : getDisplayNameOrDefault(personalDetails, formattedLogin, shouldFallbackToHidden, shouldAddPostfix);
+    // Resolve the "Hidden" fallback once from the passed string (or the cached module value), never via a per-call `translate`.
+    const resolvedHiddenTranslation = hiddenTranslationOverride ?? hiddenTranslation;
+    let longName = temporaryGetDisplayNameOrDefault({
+        passedPersonalDetails: personalDetails,
+        defaultValue: formattedLogin,
+        shouldFallbackToHidden,
+        shouldAddCurrentUserPostfix: shouldAddPostfix,
+        youAfterTranslation: youTranslation,
+        hiddenAfterTranslation: resolvedHiddenTranslation,
+        formatPhoneNumber,
+    });
 
     if (shouldRemoveDomain && longName === formattedLogin) {
         longName = longName.split('@').at(0) ?? '';
     }
 
     // If the user's personal details (first name) should be hidden, make sure we return "hidden" instead of the short name
-    if (shouldFallbackToHidden && longName === (translate ? translate('common.hidden') : hiddenTranslation)) {
+    if (shouldFallbackToHidden && longName === resolvedHiddenTranslation) {
         return longName;
     }
 
@@ -4165,12 +4174,24 @@ function getDisplayNamesWithTooltips(
 ): DisplayNameWithTooltips {
     const personalDetailsListArray = Array.isArray(personalDetailsList) ? personalDetailsList : Object.values(personalDetailsList);
 
+    // Resolve translations once, not per participant, then pass the strings down.
+    const hiddenText = translate('common.hidden');
+    const youText = translate('common.you').toLowerCase();
+
     return personalDetailsListArray
         .map((user) => {
             const accountID = Number(user?.accountID);
 
             const displayName =
-                getDisplayNameForParticipant({accountID, shouldUseShortForm, shouldFallbackToHidden, shouldAddCurrentUserPostfix, formatPhoneNumber, translate}) ||
+                getDisplayNameForParticipant({
+                    accountID,
+                    shouldUseShortForm,
+                    shouldFallbackToHidden,
+                    shouldAddCurrentUserPostfix,
+                    formatPhoneNumber,
+                    hiddenTranslation: hiddenText,
+                    youTranslation: youText,
+                }) ||
                 // eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
                 user?.login ||
                 '';
@@ -4206,7 +4227,7 @@ function getDisplayNamesWithTooltips(
  * Returns the the display names of the given user accountIDs
  */
 function getUserDetailTooltipText(accountID: number, formatPhoneNumber: LocaleContextProps['formatPhoneNumber'], translate: LocalizedTranslate, fallbackUserDisplayName = ''): string {
-    const displayNameForParticipant = getDisplayNameForParticipant({accountID, formatPhoneNumber, translate});
+    const displayNameForParticipant = getDisplayNameForParticipant({accountID, formatPhoneNumber, hiddenTranslation: translate('common.hidden')});
     return displayNameForParticipant || fallbackUserDisplayName;
 }
 
@@ -4250,7 +4271,7 @@ function getReimbursementQueuedActionMessage({
             shouldUseShortForm: shouldUseShortDisplayName,
             personalDetailsData: personalDetails,
             formatPhoneNumber,
-            translate,
+            hiddenTranslation: translate('common.hidden'),
         }) ?? '';
     const originalMessage = getOriginalMessage(reportAction);
     let messageKey: TranslationPaths;
@@ -4278,7 +4299,13 @@ function getReimbursementDeQueuedOrCanceledActionMessage(
     if (originalMessage?.cancellationReason === CONST.REPORT.CANCEL_PAYMENT_REASONS.ADMIN || originalMessage?.cancellationReason === CONST.REPORT.CANCEL_PAYMENT_REASONS.USER) {
         return translate('iou.adminCanceledRequest');
     }
-    const submitterDisplayName = getDisplayNameForParticipant({accountID: reportOwnerAccountID, shouldUseShortForm: true, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate}) ?? '';
+    const submitterDisplayName =
+        getDisplayNameForParticipant({
+            accountID: reportOwnerAccountID,
+            shouldUseShortForm: true,
+            formatPhoneNumber: formatPhoneNumberPhoneUtils,
+            hiddenTranslation: translate('common.hidden'),
+        }) ?? '';
     return translate('iou.canceledRequest', formattedAmount, submitterDisplayName);
 }
 
@@ -5841,7 +5868,12 @@ function getReportPreviewMessage(
     const policyName = getPolicyName({report: parentReport ?? report, policy, unavailableTranslation: translate('workspace.common.unavailable')});
     const payerName = isExpenseReport(report)
         ? policyName
-        : getDisplayNameForParticipant({accountID: report.managerID, shouldUseShortForm: !isPreviewMessageForParentChatReport, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate});
+        : getDisplayNameForParticipant({
+              accountID: report.managerID,
+              shouldUseShortForm: !isPreviewMessageForParentChatReport,
+              formatPhoneNumber: formatPhoneNumberPhoneUtils,
+              hiddenTranslation: translate('common.hidden'),
+          });
 
     const formattedAmount = convertToDisplayString(totalAmount, report.currency);
 
@@ -5898,7 +5930,12 @@ function getReportPreviewMessage(
         let actualPayerName =
             report.managerID === deprecatedCurrentUserAccountID && !isForListPreview
                 ? ''
-                : getDisplayNameForParticipant({accountID: payerAccountID, shouldUseShortForm: true, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate});
+                : getDisplayNameForParticipant({
+                      accountID: payerAccountID,
+                      shouldUseShortForm: true,
+                      formatPhoneNumber: formatPhoneNumberPhoneUtils,
+                      hiddenTranslation: translate('common.hidden'),
+                  });
 
         actualPayerName = actualPayerName && isForListPreview && !isPreviewMessageForParentChatReport ? `${actualPayerName}:` : actualPayerName;
         const payerDisplayName = isPreviewMessageForParentChatReport ? payerName : actualPayerName;
@@ -5923,7 +5960,12 @@ function getReportPreviewMessage(
 
     if (report.isWaitingOnBankAccount) {
         const submitterDisplayName =
-            getDisplayNameForParticipant({accountID: report.ownerAccountID, shouldUseShortForm: true, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate}) ?? '';
+            getDisplayNameForParticipant({
+                accountID: report.ownerAccountID,
+                shouldUseShortForm: true,
+                formatPhoneNumber: formatPhoneNumberPhoneUtils,
+                hiddenTranslation: translate('common.hidden'),
+            }) ?? '';
         return translate('iou.waitingOnBankAccount', submitterDisplayName);
     }
 
@@ -5952,7 +5994,12 @@ function getReportPreviewMessage(
         // We only want to show the actor name in the preview if it's not the current user who took the action
         const requestorName =
             lastActorID && lastActorID !== deprecatedCurrentUserAccountID
-                ? getDisplayNameForParticipant({accountID: lastActorID, shouldUseShortForm: !isPreviewMessageForParentChatReport, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate})
+                ? getDisplayNameForParticipant({
+                      accountID: lastActorID,
+                      shouldUseShortForm: !isPreviewMessageForParentChatReport,
+                      formatPhoneNumber: formatPhoneNumberPhoneUtils,
+                      hiddenTranslation: translate('common.hidden'),
+                  })
                 : '';
         return `${requestorName ? `${requestorName}: ` : ''}${translate('iou.expenseAmount', amountToDisplay, comment)}`;
     }
@@ -5961,7 +6008,7 @@ function getReportPreviewMessage(
         return translate(
             'iou.payerSpentAmount',
             formattedAmount,
-            getDisplayNameForParticipant({accountID: report.ownerAccountID, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate}) ?? '',
+            getDisplayNameForParticipant({accountID: report.ownerAccountID, formatPhoneNumber: formatPhoneNumberPhoneUtils, hiddenTranslation: translate('common.hidden')}) ?? '',
         );
     }
     return translate('iou.payerOwesAmount', formattedAmount, payerName ?? '', comment);
@@ -6316,7 +6363,12 @@ function getPayeeName(report: OnyxEntry<Report>, translate: LocalizedTranslate):
     if (participantsWithoutCurrentUser.length === 0) {
         return undefined;
     }
-    return getDisplayNameForParticipant({accountID: participantsWithoutCurrentUser.at(0), shouldUseShortForm: true, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate});
+    return getDisplayNameForParticipant({
+        accountID: participantsWithoutCurrentUser.at(0),
+        shouldUseShortForm: true,
+        formatPhoneNumber: formatPhoneNumberPhoneUtils,
+        hiddenTranslation: translate('common.hidden'),
+    });
 }
 
 // TODO: currentUserEmail will be required eventually so this becomes a pure function. Subscribe the data via useOnyx and pass it from the component. Refactor issue: https://github.com/Expensify/App/issues/66412
@@ -6436,7 +6488,12 @@ function getParentNavigationSubtitle(
         const login = personalDetails ? personalDetails.login : null;
 
         const reportOwnerDisplayName =
-            getDisplayNameForParticipant({accountID: ownerAccountID, shouldRemoveDomain: true, formatPhoneNumber: formatPhoneNumberPhoneUtils, translate}) || login;
+            getDisplayNameForParticipant({
+                accountID: ownerAccountID,
+                shouldRemoveDomain: true,
+                formatPhoneNumber: formatPhoneNumberPhoneUtils,
+                hiddenTranslation: translate('common.hidden'),
+            }) || login;
 
         if (isExpenseReport(report)) {
             return {
@@ -8800,7 +8857,7 @@ function buildOptimisticChangedTaskAssigneeReportAction(
         message: [
             {
                 type: CONST.REPORT.MESSAGE.TYPE.COMMENT,
-                text: `assigned to ${getDisplayNameForParticipant({accountID: assigneeAccountID, formatPhoneNumber})}`,
+                text: `assigned to ${getDisplayNameForParticipant({accountID: assigneeAccountID, formatPhoneNumber, hiddenTranslation: CONST.HIDDEN_DISPLAY_NAME})}`,
                 html: `assigned to <mention-user accountID="${assigneeAccountID}"/>`,
             },
         ],
@@ -8944,7 +9001,7 @@ function buildOptimisticChangeApproverReportAction(
         message: [
             {
                 type: CONST.REPORT.MESSAGE.TYPE.COMMENT,
-                text: `changed the approver to ${getDisplayNameForParticipant({accountID: managerID, formatPhoneNumber})}`,
+                text: `changed the approver to ${getDisplayNameForParticipant({accountID: managerID, formatPhoneNumber, hiddenTranslation: CONST.HIDDEN_DISPLAY_NAME})}`,
                 html: `changed the approver to <mention-user accountID="${managerID}"/>`,
             },
         ],
@@ -10688,8 +10745,10 @@ function getWhisperDisplayNames(translate: LocalizedTranslate, formatPhoneNumber
         return translate('common.youAfterPreposition');
     }
 
+    // Resolve the translation once, not per participant.
+    const hiddenText = translate('common.hidden');
     return participantAccountIDs
-        ?.map((accountID) => getDisplayNameForParticipant({accountID, shouldUseShortForm: !isWhisperOnlyVisibleToCurrentUser, formatPhoneNumber, translate}))
+        ?.map((accountID) => getDisplayNameForParticipant({accountID, shouldUseShortForm: !isWhisperOnlyVisibleToCurrentUser, formatPhoneNumber, hiddenTranslation: hiddenText}))
         .join(', ');
 }
 
diff --git a/src/libs/SidebarUtils.ts b/src/libs/SidebarUtils.ts
index 3993e4de416b..279bf292d906 100644
--- a/src/libs/SidebarUtils.ts
+++ b/src/libs/SidebarUtils.ts
@@ -1487,7 +1487,7 @@ function getWelcomeMessage(params: WelcomeMessageParams): WelcomeMessage {
             welcomeMessage.messageHtml = translate(
                 'reportActionsView.beginningOfChatHistoryPolicyExpenseChat',
                 getPolicyName({report, policy, unavailableTranslation: translate('workspace.common.unavailable')}),
-                getDisplayNameForParticipant({accountID: report?.ownerAccountID, formatPhoneNumber, translate}),
+                getDisplayNameForParticipant({accountID: report?.ownerAccountID, formatPhoneNumber, hiddenTranslation: translate('common.hidden')}),
             );
             welcomeMessage.messageText = Parser.htmlToText(welcomeMessage.messageHtml);
         }
@@ -1571,7 +1571,7 @@ function getRoomWelcomeMessage({
     } else if (isInvoiceRoom(report)) {
         const payer =
             report?.invoiceReceiver?.type === CONST.REPORT.INVOICE_RECEIVER_TYPE.INDIVIDUAL
-                ? getDisplayNameForParticipant({accountID: report?.invoiceReceiver?.accountID, formatPhoneNumber, translate})
+                ? getDisplayNameForParticipant({accountID: report?.invoiceReceiver?.accountID, formatPhoneNumber, hiddenTranslation: translate('common.hidden')})
                 : invoiceReceiverPolicy?.name;
         const receiver = getPolicyName({report, unavailableTranslation: translate('workspace.common.unavailable')});
         welcomeMessage.messageHtml = translate('reportActionsView.beginningOfChatHistoryInvoiceRoom', payer ?? '', receiver);
diff --git a/src/libs/SuggestionUtils.ts b/src/libs/SuggestionUtils.ts
index 28636f7be71b..b5b6f75f55c1 100644
--- a/src/libs/SuggestionUtils.ts
+++ b/src/libs/SuggestionUtils.ts
@@ -11,8 +11,8 @@ function trimLeadingSpace(str: string): string {
     return str.startsWith(' ') ? str.slice(1) : str;
 }
 
-function getDisplayName(details: PersonalDetails, formatPhoneNumber: LocaleContextProps['formatPhoneNumber'], translate: LocaleContextProps['translate']) {
-    const displayNameFromAccountID = getDisplayNameForParticipant({accountID: details.accountID, formatPhoneNumber, translate});
+function getDisplayName(details: PersonalDetails, formatPhoneNumber: LocaleContextProps['formatPhoneNumber'], hiddenTranslation: string) {
+    const displayNameFromAccountID = getDisplayNameForParticipant({accountID: details.accountID, formatPhoneNumber, hiddenTranslation});
     if (!displayNameFromAccountID) {
         return details.login?.length ? details.login : '';
     }
@@ -28,12 +28,14 @@ function getSortedPersonalDetails(
     formatPhoneNumber: LocaleContextProps['formatPhoneNumber'],
     translate: LocaleContextProps['translate'],
 ) {
+    // Resolve the translation once, not per comparison.
+    const hiddenText = translate('common.hidden');
     return personalDetails.sort((first, second) => {
         if (first.weight !== second.weight) {
             return first.weight - second.weight;
         }
 
-        const displayNameLoginOrder = localeCompare(getDisplayName(first, formatPhoneNumber, translate), getDisplayName(second, formatPhoneNumber, translate));
+        const displayNameLoginOrder = localeCompare(getDisplayName(first, formatPhoneNumber, hiddenText), getDisplayName(second, formatPhoneNumber, hiddenText));
         if (displayNameLoginOrder !== 0) {
             return displayNameLoginOrder;
         }
diff --git a/src/pages/ReportAddApproverPage.tsx b/src/pages/ReportAddApproverPage.tsx
index c9a5c947c3b0..75d03b9f1863 100644
--- a/src/pages/ReportAddApproverPage.tsx
+++ b/src/pages/ReportAddApproverPage.tsx
@@ -62,6 +62,8 @@ function ReportAddApproverPage({report, isLoadingReportData, policy}: ReportAddA
         }
 
         const policyMemberEmailsToAccountIDs = getMemberAccountIDsForWorkspace(employeeList, true, false);
+        // Resolve the translation once, not per member.
+        const hiddenText = translate('common.hidden');
         return Object.values(employeeList)
             .map((employee): SelectionListApprover | null => {
                 const isAdmin = employee?.role === CONST.REPORT.ROLE.ADMIN;
@@ -79,7 +81,7 @@ function ReportAddApproverPage({report, isLoadingReportData, policy}: ReportAddA
                 }
 
                 const {avatar} = personalDetails?.[accountID] ?? {};
-                const displayName = getDisplayNameForParticipant({accountID, personalDetailsData: personalDetails, formatPhoneNumber, translate});
+                const displayName = getDisplayNameForParticipant({accountID, personalDetailsData: personalDetails, formatPhoneNumber, hiddenTranslation: hiddenText});
                 return {
                     text: displayName,
                     alternateText: email,
diff --git a/src/pages/Search/SearchAddApproverPage.tsx b/src/pages/Search/SearchAddApproverPage.tsx
index 71f678cea82a..3464b94ff96a 100644
--- a/src/pages/Search/SearchAddApproverPage.tsx
+++ b/src/pages/Search/SearchAddApproverPage.tsx
@@ -58,6 +58,8 @@ function SearchAddApproverPage() {
         const intersectedEmployees = firstWorkspaceEmployees ? lodashPick(firstWorkspaceEmployees, lodashIntersection(...employeeLists.map(Object.keys))) : {};
         const policyMemberEmailsToAccountIDs = getMemberAccountIDsForWorkspace(intersectedEmployees, true, false);
         // We get the intersection here as we only want to show members who belong to all workspaces when adding an additional approver
+        // Resolve the translation once, not per member.
+        const hiddenText = translate('common.hidden');
         return Object.values(intersectedEmployees)
             .map((employee): SelectionListApprover | null => {
                 const isAdmin = employee?.role === CONST.REPORT.ROLE.ADMIN;
@@ -106,7 +108,7 @@ function SearchAddApproverPage() {
                 }
 
                 const {avatar} = personalDetails?.[accountID] ?? {};
-                const displayName = getDisplayNameForParticipant({accountID, formatPhoneNumber, personalDetailsData: personalDetails, translate});
+                const displayName = getDisplayNameForParticipant({accountID, formatPhoneNumber, personalDetailsData: personalDetails, hiddenTranslation: hiddenText});
                 return {
                     text: displayName,
                     alternateText: email,
diff --git a/src/pages/ShareCodePage.tsx b/src/pages/ShareCodePage.tsx
index 18e40346e74f..2eb2045f9940 100644
--- a/src/pages/ShareCodePage.tsx
+++ b/src/pages/ShareCodePage.tsx
@@ -120,9 +120,10 @@ function ShareCodePage({report, policy, backTo}: ShareCodePageProps) {
                 return getPolicyName({report, unavailableTranslation: translate('workspace.common.unavailable')});
             }
             if (isMoneyRequestReport(report)) {
-                // generate subtitle from participants
+                // generate subtitle from participants; resolve the translation once, not per participant
+                const hiddenText = translate('common.hidden');
                 return getParticipantsAccountIDsForDisplay(report, true)
-                    .map((accountID) => getDisplayNameForParticipant({accountID, formatPhoneNumber, translate}))
+                    .map((accountID) => getDisplayNameForParticipant({accountID, formatPhoneNumber, hiddenTranslation: hiddenText}))
                     .join(' & ');
             }
 
diff --git a/src/pages/inbox/report/ReportTypingIndicator.tsx b/src/pages/inbox/report/ReportTypingIndicator.tsx
index 9d9ad4d59c8e..2e9b440d4c45 100755
--- a/src/pages/inbox/report/ReportTypingIndicator.tsx
+++ b/src/pages/inbox/report/ReportTypingIndicator.tsx
@@ -35,7 +35,7 @@ function ReportTypingIndicator({reportID}: ReportTypingIndicatorProps) {
     // If the user is typing on OldDot, firstUserTyping will be a string (the user's displayName)
     const firstUserTypingDisplayName = isUserTypingADisplayName
         ? firstUserTyping
-        : getDisplayNameForParticipant({accountID: Number(firstUserTyping), shouldFallbackToHidden: false, formatPhoneNumber, translate});
+        : getDisplayNameForParticipant({accountID: Number(firstUserTyping), shouldFallbackToHidden: false, formatPhoneNumber, hiddenTranslation: translate('common.hidden')});
 
     if (usersTyping.length === 1) {
         return (
diff --git a/src/pages/inbox/sidebar/FABPopoverContent/menuItems/QuickActionMenuItem.tsx b/src/pages/inbox/sidebar/FABPopoverContent/menuItems/QuickActionMenuItem.tsx
index a9619dce4eb4..20f12260c240 100644
--- a/src/pages/inbox/sidebar/FABPopoverContent/menuItems/QuickActionMenuItem.tsx
+++ b/src/pages/inbox/sidebar/FABPopoverContent/menuItems/QuickActionMenuItem.tsx
@@ -97,7 +97,7 @@ function QuickActionMenuItem({reportID}: QuickActionMenuItemProps) {
     if (!isEmptyObject(quickActionReport)) {
         if (quickAction?.action === CONST.QUICK_ACTIONS.SEND_MONEY && quickActionAvatars.length > 0) {
             const accountID = quickActionAvatars.at(0)?.id ?? CONST.DEFAULT_NUMBER_ID;
-            const name = getDisplayNameForParticipant({accountID: Number(accountID), shouldUseShortForm: true, formatPhoneNumber, translate}) ?? '';
+            const name = getDisplayNameForParticipant({accountID: Number(accountID), shouldUseShortForm: true, formatPhoneNumber, hiddenTranslation: translate('common.hidden')}) ?? '';
             quickActionTitle = translate('quickAction.paySomeone', name);
         } else {
             const titleKey = getQuickActionTitle(quickAction?.action ?? ('' as QuickActionName));
diff --git a/src/pages/workspace/WorkspaceMembersPage.tsx b/src/pages/workspace/WorkspaceMembersPage.tsx
index 4349da8316b0..957f9bb1dd9a 100644
--- a/src/pages/workspace/WorkspaceMembersPage.tsx
+++ b/src/pages/workspace/WorkspaceMembersPage.tsx
@@ -162,14 +162,15 @@ function WorkspaceMembersPage({personalDetails, route, policy}: WorkspaceMembers
     const canSelectMultiple = canWriteMembers && (shouldUseNarrowLayout ? isMobileSelectionModeEnabled : true);
 
     const confirmModalPrompt = useMemo(() => {
+        const hiddenText = translate('common.hidden');
         const approverEmail = selectedEmployees.find((selectedEmployee) => isPolicyApprover(policy, selectedEmployee));
 
         if (approverEmail) {
             const approverAccountID = policyMemberEmailsToAccountIDs[approverEmail];
             return translate(
                 'workspace.people.removeMembersWarningPrompt',
-                getDisplayNameForParticipant({accountID: approverAccountID, formatPhoneNumber, translate}),
-                getDisplayNameForParticipant({accountID: policy?.ownerAccountID, formatPhoneNumber, translate}),
+                getDisplayNameForParticipant({accountID: approverAccountID, formatPhoneNumber, hiddenTranslation: hiddenText}),
+                getDisplayNameForParticipant({accountID: policy?.ownerAccountID, formatPhoneNumber, hiddenTranslation: hiddenText}),
             );
         }
 
@@ -179,8 +180,8 @@ function WorkspaceMembersPage({personalDetails, route, policy}: WorkspaceMembers
         if (userExporter) {
             const exporterAccountID = policyMemberEmailsToAccountIDs[userExporter];
             return translate('workspace.people.removeMemberPromptExporter', {
-                memberName: getDisplayNameForParticipant({accountID: exporterAccountID, formatPhoneNumber, translate}),
-                workspaceOwner: getDisplayNameForParticipant({accountID: policy?.ownerAccountID, formatPhoneNumber, translate}),
+                memberName: getDisplayNameForParticipant({accountID: exporterAccountID, formatPhoneNumber, hiddenTranslation: hiddenText}),
+                workspaceOwner: getDisplayNameForParticipant({accountID: policy?.ownerAccountID, formatPhoneNumber, hiddenTranslation: hiddenText}),
             });
         }
 
diff --git a/tests/unit/QuickActionMenuItemTest.tsx b/tests/unit/QuickActionMenuItemTest.tsx
index 968b41e34d72..b59787dc73e7 100644
--- a/tests/unit/QuickActionMenuItemTest.tsx
+++ b/tests/unit/QuickActionMenuItemTest.tsx
@@ -64,7 +64,7 @@ describe('QuickActionMenuItem', () => {
         await waitForBatchedUpdates();
 
         // The pay-someone quick action resolves the payee name via getDisplayNameForParticipant, which must receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: AVATAR_ACCOUNT_ID, shouldUseShortForm: true, translate: mockTranslate}));
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: AVATAR_ACCOUNT_ID, shouldUseShortForm: true, hiddenTranslation: 'common.hidden'}));
         expect(mockTranslate).toHaveBeenCalledWith('quickAction.paySomeone', 'SPY_NAME');
     });
 });
diff --git a/tests/unit/ReportAddApproverPageTranslateTest.tsx b/tests/unit/ReportAddApproverPageTranslateTest.tsx
index c6f2c5af13cd..1750d98836ad 100644
--- a/tests/unit/ReportAddApproverPageTranslateTest.tsx
+++ b/tests/unit/ReportAddApproverPageTranslateTest.tsx
@@ -92,6 +92,6 @@ describe('ReportAddApproverPage', () => {
         await waitForBatchedUpdates();
 
         // Each candidate approver's name resolves via getDisplayNameForParticipant, which must receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: APPROVER_ACCOUNT_ID, translate: mockTranslate}));
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: APPROVER_ACCOUNT_ID, hiddenTranslation: 'common.hidden'}));
     });
 });
diff --git a/tests/unit/ReportTypingIndicatorTest.tsx b/tests/unit/ReportTypingIndicatorTest.tsx
index adf7b3cf6afb..e09ec3132d70 100644
--- a/tests/unit/ReportTypingIndicatorTest.tsx
+++ b/tests/unit/ReportTypingIndicatorTest.tsx
@@ -57,7 +57,9 @@ describe('ReportTypingIndicator', () => {
         await waitForBatchedUpdates();
 
         // The typing user's name resolves via getDisplayNameForParticipant, which must receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: TYPING_ACCOUNT_ID, shouldFallbackToHidden: false, translate: mockTranslate}));
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(
+            expect.objectContaining({accountID: TYPING_ACCOUNT_ID, shouldFallbackToHidden: false, hiddenTranslation: 'common.hidden'}),
+        );
         expect(screen.getByText('SPY_NAME')).toBeOnTheScreen();
     });
 });
diff --git a/tests/unit/ReportUtilsTest.ts b/tests/unit/ReportUtilsTest.ts
index 931b0b781a82..d73a9498d407 100644
--- a/tests/unit/ReportUtilsTest.ts
+++ b/tests/unit/ReportUtilsTest.ts
@@ -15284,7 +15284,7 @@ describe('ReportUtils', () => {
                 formatPhoneNumber,
                 accountID: hiddenAccountID,
                 personalDetailsData: personalDetailsWithHidden,
-                translate: translateLocal,
+                hiddenTranslation: translateLocal('common.hidden'),
             });
 
             expect(result).toBe(translateLocal('common.hidden'));
@@ -15311,23 +15311,21 @@ describe('ReportUtils', () => {
                 accountID: hiddenAccountID,
                 shouldUseShortForm: true,
                 personalDetailsData: personalDetailsWithHidden,
-                translate: translateLocal,
+                hiddenTranslation: translateLocal('common.hidden'),
             });
 
             expect(result).toBe(translateLocal('common.hidden'));
             expect(result).not.toBe('ShortName');
         });
 
-        it('resolves the hidden participant fallback through the provided translate function', () => {
+        it('resolves the hidden participant fallback through the provided hiddenTranslation string', () => {
             const hiddenAccountID = 909090;
-            // A known participant with no displayName/login resolves to the hidden label, which must come from the provided translate function.
-            const translateWithHiddenMarker: LocalizedTranslate = (path, ...parameters) => (path === 'common.hidden' ? 'HiddenMarker' : translateLocal(path, ...parameters));
-
+            // A known participant with no displayName/login resolves to the hidden label, which must come from the provided hiddenTranslation string.
             const displayName = getDisplayNameForParticipant({
                 accountID: hiddenAccountID,
                 formatPhoneNumber,
                 personalDetailsData: {[hiddenAccountID]: {accountID: hiddenAccountID, login: '', displayName: ''}},
-                translate: translateWithHiddenMarker,
+                hiddenTranslation: 'HiddenMarker',
             });
 
             expect(displayName).toBe('HiddenMarker');
diff --git a/tests/unit/SearchAddApproverPageTranslateTest.tsx b/tests/unit/SearchAddApproverPageTranslateTest.tsx
index 134ecbfeabdf..8426219ec673 100644
--- a/tests/unit/SearchAddApproverPageTranslateTest.tsx
+++ b/tests/unit/SearchAddApproverPageTranslateTest.tsx
@@ -90,6 +90,6 @@ describe('SearchAddApproverPage', () => {
         await waitForBatchedUpdates();
 
         // Each candidate approver's name resolves via getDisplayNameForParticipant, which must receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: APPROVER_ACCOUNT_ID, translate: mockTranslate}));
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: APPROVER_ACCOUNT_ID, hiddenTranslation: 'common.hidden'}));
     });
 });
diff --git a/tests/unit/ShareCodePageTranslateTest.tsx b/tests/unit/ShareCodePageTranslateTest.tsx
index 6284dc048ec3..87b2cc6966b4 100644
--- a/tests/unit/ShareCodePageTranslateTest.tsx
+++ b/tests/unit/ShareCodePageTranslateTest.tsx
@@ -89,7 +89,7 @@ describe('ShareCodePage', () => {
         await waitForBatchedUpdates();
 
         // Each participant's name resolves via getDisplayNameForParticipant, which must receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({translate: mockTranslate}));
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({hiddenTranslation: 'common.hidden'}));
     });
 
     describe('profile QR code avatar logo', () => {
diff --git a/tests/unit/SuggestionUtilsTranslateTest.ts b/tests/unit/SuggestionUtilsTranslateTest.ts
index 1407b31eef81..f18c6227c04a 100644
--- a/tests/unit/SuggestionUtilsTranslateTest.ts
+++ b/tests/unit/SuggestionUtilsTranslateTest.ts
@@ -27,14 +27,14 @@ describe('SuggestionUtils - getSortedPersonalDetails translate threading', () =>
         jest.clearAllMocks();
     });
 
-    it('passes the provided translate function to getDisplayNameForParticipant', () => {
+    it('passes the resolved hidden string to getDisplayNameForParticipant', () => {
         const first = {login: 'first@test.com', weight: 2, accountID: 801} as PersonalDetails & {weight: number};
         const second = {login: 'second@test.com', weight: 2, accountID: 802} as PersonalDetails & {weight: number};
 
         getSortedPersonalDetails([second, first], localeCompare, formatPhoneNumber, translateLocal);
 
-        // The sort comparator resolves each display name via getDisplayNameForParticipant, which must receive the provided translate.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({translate: translateLocal}));
+        // The sort comparator resolves each display name via getDisplayNameForParticipant, which must receive the resolved "Hidden" string.
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({hiddenTranslation: translateLocal('common.hidden')}));
     });
 
     it('sorts by the display name resolved through the provided translate function', () => {
diff --git a/tests/unit/TaskViewTranslateTest.tsx b/tests/unit/TaskViewTranslateTest.tsx
index 5656e131128a..404c621c5287 100644
--- a/tests/unit/TaskViewTranslateTest.tsx
+++ b/tests/unit/TaskViewTranslateTest.tsx
@@ -70,6 +70,6 @@ describe('TaskView', () => {
         await waitForBatchedUpdates();
 
         // The assignee menu item resolves its title via getDisplayNameForParticipant, which must receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: TASK_MANAGER_ACCOUNT_ID, translate: mockTranslate}));
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: TASK_MANAGER_ACCOUNT_ID, hiddenTranslation: 'common.hidden'}));
     });
 });
diff --git a/tests/unit/UserSelectionListItemTest.tsx b/tests/unit/UserSelectionListItemTest.tsx
index 7446855b8c76..2eb2b69f0686 100644
--- a/tests/unit/UserSelectionListItemTest.tsx
+++ b/tests/unit/UserSelectionListItemTest.tsx
@@ -50,6 +50,6 @@ describe('UserSelectionListItem', () => {
         );
 
         // The row's display name resolves via getDisplayNameForParticipant, which must receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: ITEM_ACCOUNT_ID, translate: mockTranslate}));
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: ITEM_ACCOUNT_ID, hiddenTranslation: 'common.hidden'}));
     });
 });
diff --git a/tests/unit/usePreviewMessageAnimationTest.ts b/tests/unit/usePreviewMessageAnimationTest.ts
index 289371792b88..e047b513eb70 100644
--- a/tests/unit/usePreviewMessageAnimationTest.ts
+++ b/tests/unit/usePreviewMessageAnimationTest.ts
@@ -59,7 +59,7 @@ describe('usePreviewMessageAnimation', () => {
         const {result} = renderHook(() => usePreviewMessageAnimation(baseParams));
 
         // The hook resolves the payer/approver name via getDisplayNameForParticipant, which must receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: MANAGER_ID, shouldUseShortForm: true, translate: mockTranslate}));
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: MANAGER_ID, shouldUseShortForm: true, hiddenTranslation: 'common.hidden'}));
         expect(result.current.previewMessageStyle).toBeDefined();
     });
 
@@ -69,6 +69,6 @@ describe('usePreviewMessageAnimation', () => {
         renderHook(() => usePreviewMessageAnimation({...baseParams, hasNonReimbursableTransactions: true, chatReport}));
 
         // The payerSpent branch re-resolves the name from the chat owner, and it must also receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: CHAT_OWNER_ID, shouldUseShortForm: true, translate: mockTranslate}));
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: CHAT_OWNER_ID, shouldUseShortForm: true, hiddenTranslation: 'common.hidden'}));
     });
 });
diff --git a/tests/unit/useReportActionAvatarsTranslateTest.tsx b/tests/unit/useReportActionAvatarsTranslateTest.tsx
index 7998f89abb8d..b13c1ed4f3b2 100644
--- a/tests/unit/useReportActionAvatarsTranslateTest.tsx
+++ b/tests/unit/useReportActionAvatarsTranslateTest.tsx
@@ -51,7 +51,7 @@ describe('useReportActionAvatars translate wiring', () => {
 
         renderHook(() => useReportActionAvatars({report, action}), {wrapper});
 
-        // The hook resolves the default display name via getDisplayNameForParticipant, which must receive the translate from useLocalize.
-        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({accountID: ACTOR_ACCOUNT_ID, translate: mockTranslate}));
+        // The hook resolves the default display name via getDisplayNameForParticipant, which must receive the resolved "Hidden" string from useLocalize.
+        expect(mockGetDisplayNameForParticipant).toHaveBeenCalledWith(expect.objectContaining({hiddenTranslation: 'common.hidden'}));
     });
 });