diff --git a/locales/index.d.ts b/locales/index.d.ts
index 64ee30410e..d72e7d29f5 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -1030,6 +1030,8 @@ export interface Locale {
     "sensitiveWords": string;
     "sensitiveWordsDescription": string;
     "sensitiveWordsDescription2": string;
+    "hiddenTags": string;
+    "hiddenTagsDescription": string;
     "notesSearchNotAvailable": string;
     "license": string;
     "unfavoriteConfirm": string;
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index f4daefa978..0f4164652c 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -1027,6 +1027,8 @@ resetPasswordConfirm: "パスワードリセットしますか？"
 sensitiveWords: "センシティブワード"
 sensitiveWordsDescription: "設定したワードが含まれるノートの公開範囲をホームにします。改行で区切って複数設定できます。"
 sensitiveWordsDescription2: "スペースで区切るとAND指定になり、キーワードをスラッシュで囲むと正規表現になります。"
+hiddenTags: "非表示ハッシュタグ"
+hiddenTagsDescription: "設定したタグをトレンドに表示させないようにします。改行で区切って複数設定できます。"
 notesSearchNotAvailable: "ノート検索は利用できません。"
 license: "ライセンス"
 unfavoriteConfirm: "お気に入り解除しますか？"
diff --git a/packages/frontend/src/pages/admin/moderation.vue b/packages/frontend/src/pages/admin/moderation.vue
index 59ee041386..47f46fe6cf 100644
--- a/packages/frontend/src/pages/admin/moderation.vue
+++ b/packages/frontend/src/pages/admin/moderation.vue
@@ -39,6 +39,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<template #label>{{ i18n.ts.sensitiveWords }}</template>
 						<template #caption>{{ i18n.ts.sensitiveWordsDescription }}<br>{{ i18n.ts.sensitiveWordsDescription2 }}</template>
 					</MkTextarea>
+
+					<MkTextarea v-model="hiddenTags">
+						<template #label>{{ i18n.ts.hiddenTags }}</template>
+						<template #caption>{{ i18n.ts.hiddenTagsDescription }}</template>
+					</MkTextarea>
 				</div>
 			</FormSuspense>
 		</MkSpacer>
@@ -72,6 +77,7 @@ import FormLink from '@/components/form/link.vue';
 let enableRegistration: boolean = $ref(false);
 let emailRequiredForSignup: boolean = $ref(false);
 let sensitiveWords: string = $ref('');
+let hiddenTags: string = $ref('');
 let preservedUsernames: string = $ref('');
 let tosUrl: string | null = $ref(null);
 let privacyPolicyUrl: string | null = $ref(null);
@@ -81,6 +87,7 @@ async function init() {
 	enableRegistration = !meta.disableRegistration;
 	emailRequiredForSignup = meta.emailRequiredForSignup;
 	sensitiveWords = meta.sensitiveWords.join('\n');
+	hiddenTags = meta.hiddenTags.join('\n');
 	preservedUsernames = meta.preservedUsernames.join('\n');
 	tosUrl = meta.tosUrl;
 	privacyPolicyUrl = meta.privacyPolicyUrl;
@@ -93,6 +100,7 @@ function save() {
 		tosUrl,
 		privacyPolicyUrl,
 		sensitiveWords: sensitiveWords.split('\n'),
+		hiddenTags: hiddenTags.split('\n'),
 		preservedUsernames: preservedUsernames.split('\n'),
 	}).then(() => {
 		fetchInstance();