diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3149fae6e6d3..7d88aae7006c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,13 @@
 -->
 
 ## 2023.9.3
+### General
+- Enhance: ノートの翻訳機能の利用可否をロールで設定可能に
+
+### Client
+- Enhance: モデレーションログ機能の強化
+- Enhance: ローカリゼーションの更新
+
 ### Server
 - Fix: Redisに古いバージョンのキャッシュが残っている場合、キャッシュが消えるまでの間通知が届かなくなる問題を修正
 
diff --git a/locales/index.d.ts b/locales/index.d.ts
index 15736f6994af..a9de0ad9652f 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -1562,6 +1562,7 @@ export interface Locale {
             "descriptionOfRateLimitFactor": string;
             "canHideAds": string;
             "canSearchNotes": string;
+            "canUseTranslator": string;
         };
         "_condition": {
             "isLocal": string;
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index dcdff1b317fd..c4594987296c 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -1482,7 +1482,8 @@ _role:
     rateLimitFactor: "レートリミット"
     descriptionOfRateLimitFactor: "小さいほど制限が緩和され、大きいほど制限が強化されます。"
     canHideAds: "広告の非表示"
-    canSearchNotes: "ノート検索の利用可否"
+    canSearchNotes: "ノート検索の利用"
+    canUseTranslator: "翻訳機能の利用"
   _condition:
     isLocal: "ローカルユーザー"
     isRemote: "リモートユーザー"
diff --git a/packages/backend/src/core/RoleService.ts b/packages/backend/src/core/RoleService.ts
index c3445abc5337..ad40fbaecd4a 100644
--- a/packages/backend/src/core/RoleService.ts
+++ b/packages/backend/src/core/RoleService.ts
@@ -33,6 +33,7 @@ export type RolePolicies = {
 	inviteExpirationTime: number;
 	canManageCustomEmojis: boolean;
 	canSearchNotes: boolean;
+	canUseTranslator: boolean;
 	canHideAds: boolean;
 	driveCapacityMb: number;
 	alwaysMarkNsfw: boolean;
@@ -58,6 +59,7 @@ export const DEFAULT_POLICIES: RolePolicies = {
 	inviteExpirationTime: 0,
 	canManageCustomEmojis: false,
 	canSearchNotes: false,
+	canUseTranslator: true,
 	canHideAds: false,
 	driveCapacityMb: 100,
 	alwaysMarkNsfw: false,
@@ -303,6 +305,7 @@ export class RoleService implements OnApplicationShutdown {
 			inviteExpirationTime: calc('inviteExpirationTime', vs => Math.max(...vs)),
 			canManageCustomEmojis: calc('canManageCustomEmojis', vs => vs.some(v => v === true)),
 			canSearchNotes: calc('canSearchNotes', vs => vs.some(v => v === true)),
+			canUseTranslator: calc('canUseTranslator', vs => vs.some(v => v === true)),
 			canHideAds: calc('canHideAds', vs => vs.some(v => v === true)),
 			driveCapacityMb: calc('driveCapacityMb', vs => Math.max(...vs)),
 			alwaysMarkNsfw: calc('alwaysMarkNsfw', vs => vs.some(v => v === true)),
diff --git a/packages/backend/src/server/api/endpoints/notes/translate.ts b/packages/backend/src/server/api/endpoints/notes/translate.ts
index 00cb9a0a2863..a1561c944cf8 100644
--- a/packages/backend/src/server/api/endpoints/notes/translate.ts
+++ b/packages/backend/src/server/api/endpoints/notes/translate.ts
@@ -10,12 +10,13 @@ import { NoteEntityService } from '@/core/entities/NoteEntityService.js';
 import { MetaService } from '@/core/MetaService.js';
 import { HttpRequestService } from '@/core/HttpRequestService.js';
 import { GetterService } from '@/server/api/GetterService.js';
+import { RoleService } from '@/core/RoleService.js';
 import { ApiError } from '../../error.js';
 
 export const meta = {
 	tags: ['notes'],
 
-	requireCredential: false,
+	requireCredential: true,
 
 	res: {
 		type: 'object',
@@ -23,6 +24,11 @@ export const meta = {
 	},
 
 	errors: {
+		unavailable: {
+			message: 'Translate of notes unavailable.',
+			code: 'UNAVAILABLE',
+			id: '50a70314-2d8a-431b-b433-efa5cc56444c',
+		},
 		noSuchNote: {
 			message: 'No such note.',
 			code: 'NO_SUCH_NOTE',
@@ -47,14 +53,20 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 		private getterService: GetterService,
 		private metaService: MetaService,
 		private httpRequestService: HttpRequestService,
+		private roleService: RoleService,
 	) {
 		super(meta, paramDef, async (ps, me) => {
+			const policies = await this.roleService.getUserPolicies(me.id);
+			if (!policies.canUseTranslator) {
+				throw new ApiError(meta.errors.unavailable);
+			}
+
 			const note = await this.getterService.getNote(ps.noteId).catch(err => {
 				if (err.id === '9725d0ce-ba28-4dde-95a7-2cbb2c15de24') throw new ApiError(meta.errors.noSuchNote);
 				throw err;
 			});
 
-			if (!(await this.noteEntityService.isVisibleForMe(note, me ? me.id : null))) {
+			if (!(await this.noteEntityService.isVisibleForMe(note, me.id))) {
 				return 204; // TODO: 良い感じのエラー返す
 			}
 
diff --git a/packages/frontend/src/const.ts b/packages/frontend/src/const.ts
index 9fd6d40d7204..f4ce0a096dea 100644
--- a/packages/frontend/src/const.ts
+++ b/packages/frontend/src/const.ts
@@ -68,6 +68,7 @@ export const ROLE_POLICIES = [
 	'inviteExpirationTime',
 	'canManageCustomEmojis',
 	'canSearchNotes',
+	'canUseTranslator',
 	'canHideAds',
 	'driveCapacityMb',
 	'alwaysMarkNsfw',
diff --git a/packages/frontend/src/pages/admin/roles.editor.vue b/packages/frontend/src/pages/admin/roles.editor.vue
index 1b72e1d3326a..8015bb7a7f73 100644
--- a/packages/frontend/src/pages/admin/roles.editor.vue
+++ b/packages/frontend/src/pages/admin/roles.editor.vue
@@ -299,6 +299,26 @@ SPDX-License-Identifier: AGPL-3.0-only
 				</div>
 			</MkFolder>
 
+			<MkFolder v-if="matchQuery([i18n.ts._role._options.canUseTranslator, 'canUseTranslator'])">
+				<template #label>{{ i18n.ts._role._options.canUseTranslator }}</template>
+				<template #suffix>
+					<span v-if="role.policies.canUseTranslator.useDefault" :class="$style.useDefaultLabel">{{ i18n.ts._role.useBaseValue }}</span>
+					<span v-else>{{ role.policies.canUseTranslator.value ? i18n.ts.yes : i18n.ts.no }}</span>
+					<span :class="$style.priorityIndicator"><i :class="getPriorityIcon(role.policies.canUseTranslator)"></i></span>
+				</template>
+				<div class="_gaps">
+					<MkSwitch v-model="role.policies.canUseTranslator.useDefault" :readonly="readonly">
+						<template #label>{{ i18n.ts._role.useBaseValue }}</template>
+					</MkSwitch>
+					<MkSwitch v-model="role.policies.canUseTranslator.value" :disabled="role.policies.canUseTranslator.useDefault" :readonly="readonly">
+						<template #label>{{ i18n.ts.enable }}</template>
+					</MkSwitch>
+					<MkRange v-model="role.policies.canUseTranslator.priority" :min="0" :max="2" :step="1" easing :textConverter="(v) => v === 0 ? i18n.ts._role._priority.low : v === 1 ? i18n.ts._role._priority.middle : v === 2 ? i18n.ts._role._priority.high : ''">
+						<template #label>{{ i18n.ts._role.priority }}</template>
+					</MkRange>
+				</div>
+			</MkFolder>
+
 			<MkFolder v-if="matchQuery([i18n.ts._role._options.driveCapacity, 'driveCapacityMb'])">
 				<template #label>{{ i18n.ts._role._options.driveCapacity }}</template>
 				<template #suffix>
diff --git a/packages/frontend/src/pages/admin/roles.vue b/packages/frontend/src/pages/admin/roles.vue
index e1306d04b9e8..001cf3490e9f 100644
--- a/packages/frontend/src/pages/admin/roles.vue
+++ b/packages/frontend/src/pages/admin/roles.vue
@@ -103,6 +103,14 @@ SPDX-License-Identifier: AGPL-3.0-only
 							</MkSwitch>
 						</MkFolder>
 
+						<MkFolder v-if="matchQuery([i18n.ts._role._options.canUseTranslator, 'canSearchNotes'])">
+							<template #label>{{ i18n.ts._role._options.canUseTranslator }}</template>
+							<template #suffix>{{ policies.canUseTranslator ? i18n.ts.yes : i18n.ts.no }}</template>
+							<MkSwitch v-model="policies.canUseTranslator">
+								<template #label>{{ i18n.ts.enable }}</template>
+							</MkSwitch>
+						</MkFolder>
+
 						<MkFolder v-if="matchQuery([i18n.ts._role._options.driveCapacity, 'driveCapacityMb'])">
 							<template #label>{{ i18n.ts._role._options.driveCapacity }}</template>
 							<template #suffix>{{ policies.driveCapacityMb }}MB</template>
diff --git a/packages/frontend/src/scripts/get-note-menu.ts b/packages/frontend/src/scripts/get-note-menu.ts
index 45fb622069f7..62d9aab91bd6 100644
--- a/packages/frontend/src/scripts/get-note-menu.ts
+++ b/packages/frontend/src/scripts/get-note-menu.ts
@@ -288,7 +288,7 @@ export function getNoteMenu(props: {
 				text: i18n.ts.share,
 				action: share,
 			},
-			instance.translatorAvailable ? {
+			$i && $i.policies.canUseTranslator && instance.translatorAvailable ? {
 				icon: 'ti ti-language-hiragana',
 				text: i18n.ts.translate,
 				action: translate,