diff --git a/CHANGELOG.md b/CHANGELOG.md
index 778e6cee1c..dc99ee33fe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@
 - Feat: プロフィールでのリンク検証
 - Feat: 通知をテストできるようになりました
 - Feat: PWAのアイコンが設定できるようになりました
+- Enhance: サーバー名の略称が設定できるようになりました
 - Enhance: アンテナの受信ソースに指定したユーザを除外するものを追加
 - Enhance: 二要素認証設定時のセキュリティを強化
 	- パスワード入力が必要な操作を行う際、二要素認証が有効であれば確認コードの入力も必要になりました
diff --git a/locales/index.d.ts b/locales/index.d.ts
index dbd485379f..da60550193 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -1158,6 +1158,8 @@ export interface Locale {
         "appIconStyleRecommendation": string;
         "appIconResolutionMustBe": string;
         "manifestJsonOverride": string;
+        "shortName": string;
+        "shortNameDescription": string;
     };
     "_accountMigration": {
         "moveFrom": string;
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index ae32891018..0869c0c455 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -1156,6 +1156,8 @@ _serverSettings:
   appIconStyleRecommendation: "円形もしくは角丸にクロップされる場合があるため、塗り潰された余白のある背景を持つことが推奨されます。"
   appIconResolutionMustBe: "解像度は必ず{resolution}である必要があります。"
   manifestJsonOverride: "manifest.jsonのオーバーライド"
+  shortName: "略称"
+  shortNameDescription: "サーバーの正式名称が長い場合に、代わりに表示することのできる略称や通称。"
 
 _accountMigration:
   moveFrom: "別のアカウントからこのアカウントに移行"
diff --git a/packages/backend/migration/1695440131671-short-name.js b/packages/backend/migration/1695440131671-short-name.js
new file mode 100644
index 0000000000..2c37297fc1
--- /dev/null
+++ b/packages/backend/migration/1695440131671-short-name.js
@@ -0,0 +1,11 @@
+export class ShortName1695440131671 {
+    name = 'ShortName1695440131671'
+
+    async up(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "meta" ADD "shortName" character varying(64)`);
+    }
+
+    async down(queryRunner) {
+        await queryRunner.query(`ALTER TABLE "meta" DROP COLUMN "shortName"`);
+    }
+}
diff --git a/packages/backend/src/models/Meta.ts b/packages/backend/src/models/Meta.ts
index a9e116341f..e69bef8e98 100644
--- a/packages/backend/src/models/Meta.ts
+++ b/packages/backend/src/models/Meta.ts
@@ -20,6 +20,11 @@ export class MiMeta {
 	})
 	public name: string | null;
 
+	@Column('varchar', {
+		length: 64, nullable: true,
+	})
+	public shortName: string | null;
+
 	@Column('varchar', {
 		length: 1024, nullable: true,
 	})
diff --git a/packages/backend/src/server/api/endpoints/admin/meta.ts b/packages/backend/src/server/api/endpoints/admin/meta.ts
index fe9c134d84..c3ba07cdd0 100644
--- a/packages/backend/src/server/api/endpoints/admin/meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/meta.ts
@@ -321,6 +321,7 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				maintainerEmail: instance.maintainerEmail,
 				version: this.config.version,
 				name: instance.name,
+				shortName: instance.shortName,
 				uri: this.config.url,
 				description: instance.description,
 				langs: instance.langs,
diff --git a/packages/backend/src/server/api/endpoints/admin/update-meta.ts b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
index 614e0a95d7..eabf1f306c 100644
--- a/packages/backend/src/server/api/endpoints/admin/update-meta.ts
+++ b/packages/backend/src/server/api/endpoints/admin/update-meta.ts
@@ -44,6 +44,7 @@ export const paramDef = {
 		backgroundImageUrl: { type: 'string', nullable: true },
 		logoImageUrl: { type: 'string', nullable: true },
 		name: { type: 'string', nullable: true },
+		shortName: { type: 'string', nullable: true },
 		description: { type: 'string', nullable: true },
 		defaultLightTheme: { type: 'string', nullable: true },
 		defaultDarkTheme: { type: 'string', nullable: true },
@@ -188,6 +189,10 @@ export default class extends Endpoint<typeof meta, typeof paramDef> { // eslint-
 				set.name = ps.name;
 			}
 
+			if (ps.shortName !== undefined) {
+				set.shortName = ps.shortName;
+			}
+
 			if (ps.description !== undefined) {
 				set.description = ps.description;
 			}
diff --git a/packages/backend/src/server/web/ClientServerService.ts b/packages/backend/src/server/web/ClientServerService.ts
index 7b1dd92d73..1faff24201 100644
--- a/packages/backend/src/server/web/ClientServerService.ts
+++ b/packages/backend/src/server/web/ClientServerService.ts
@@ -114,10 +114,10 @@ export class ClientServerService {
 		let manifest = {
 			// 空文字列の場合右辺を使いたいため
 			// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
-			'short_name': instance.name || 'Misskey',
+			'short_name': instance.shortName || instance.name || this.config.host,
 			// 空文字列の場合右辺を使いたいため
 			// eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
-			'name': instance.name || 'Misskey',
+			'name': instance.name || this.config.host,
 			'start_url': '/',
 			'display': 'standalone',
 			'background_color': '#313a42',
diff --git a/packages/frontend/src/pages/admin/settings.vue b/packages/frontend/src/pages/admin/settings.vue
index adcf061149..f93678d728 100644
--- a/packages/frontend/src/pages/admin/settings.vue
+++ b/packages/frontend/src/pages/admin/settings.vue
@@ -14,6 +14,11 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<template #label>{{ i18n.ts.instanceName }}</template>
 					</MkInput>
 
+					<MkInput v-model="shortName">
+						<template #label>{{ i18n.ts._serverSettings.shortName }} ({{ i18n.ts.optional }})</template>
+						<template #caption>{{ i18n.ts._serverSettings.shortNameDescription }}</template>
+					</MkInput>
+
 					<MkTextarea v-model="description">
 						<template #label>{{ i18n.ts.instanceDescription }}</template>
 					</MkTextarea>
@@ -118,6 +123,7 @@ import { definePageMetadata } from '@/scripts/page-metadata.js';
 import MkButton from '@/components/MkButton.vue';
 
 let name: string | null = $ref(null);
+let shortName: string | null = $ref(null);
 let description: string | null = $ref(null);
 let maintainerName: string | null = $ref(null);
 let maintainerEmail: string | null = $ref(null);
@@ -133,6 +139,7 @@ let deeplIsPro: boolean = $ref(false);
 async function init(): Promise<void> {
 	const meta = await os.api('admin/meta');
 	name = meta.name;
+	shortName = meta.shortName;
 	description = meta.description;
 	maintainerName = meta.maintainerName;
 	maintainerEmail = meta.maintainerEmail;
@@ -149,6 +156,7 @@ async function init(): Promise<void> {
 function save(): void {
 	os.apiWithDialog('admin/update-meta', {
 		name,
+		shortName: shortName === '' ? null : shortName,
 		description,
 		maintainerName,
 		maintainerEmail,
diff --git a/packages/misskey-js/etc/misskey-js.api.md b/packages/misskey-js/etc/misskey-js.api.md
index d72652bd92..5cd679bce5 100644
--- a/packages/misskey-js/etc/misskey-js.api.md
+++ b/packages/misskey-js/etc/misskey-js.api.md
@@ -2404,6 +2404,7 @@ type LiteInstanceMetadata = {
     maintainerEmail: string | null;
     version: string;
     name: string | null;
+    shortName: string | null;
     uri: string;
     description: string | null;
     langs: string[];
diff --git a/packages/misskey-js/src/entities.ts b/packages/misskey-js/src/entities.ts
index 9a0114d71c..034201f9b9 100644
--- a/packages/misskey-js/src/entities.ts
+++ b/packages/misskey-js/src/entities.ts
@@ -298,6 +298,7 @@ export type LiteInstanceMetadata = {
 	maintainerEmail: string | null;
 	version: string;
 	name: string | null;
+	shortName: string | null;
 	uri: string;
 	description: string | null;
 	langs: string[];