diff --git a/CHANGELOG.md b/CHANGELOG.md
index c92b8c06a1..8be3da2c9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -19,6 +19,7 @@
 - Enhance: Self-XSS防止用の警告を追加
 - Enhance: カタルーニャ語 (ca-ES) に対応
 - Enhance: 個別お知らせページではMetaタグを出力するように
+- Enhance: Blueskyの投稿埋め込みプレビューに対応
 - Fix: 通知の範囲指定の設定項目が必要ない通知設定でも範囲指定の設定がでている問題を修正
 - Fix: Turnstileが失敗・期限切れした際にも成功扱いとなってしまう問題を修正  
   (Cherry-picked from https://github.com/MisskeyIO/misskey/pull/768)
diff --git a/locales/index.d.ts b/locales/index.d.ts
index 440f24ac84..c984f2a8c8 100644
--- a/locales/index.d.ts
+++ b/locales/index.d.ts
@@ -2585,7 +2585,7 @@ export interface Locale extends ILocale {
     /**
      * ポストを展開する
      */
-    "expandTweet": string;
+    "expandPost": string;
     /**
      * テーマエディター
      */
diff --git a/locales/ja-JP.yml b/locales/ja-JP.yml
index 5d8e1a5e72..5aa72f602e 100644
--- a/locales/ja-JP.yml
+++ b/locales/ja-JP.yml
@@ -641,7 +641,7 @@ poll: "アンケート"
 useCw: "内容を隠す"
 enablePlayer: "プレイヤーを開く"
 disablePlayer: "プレイヤーを閉じる"
-expandTweet: "ポストを展開する"
+expandPost: "ポストを展開する"
 themeEditor: "テーマエディター"
 description: "説明"
 describeFile: "キャプションを付ける"
diff --git a/packages/frontend/src/components/MkUrlPreview.vue b/packages/frontend/src/components/MkUrlPreview.vue
index f0da8fd3f2..437cb0e57f 100644
--- a/packages/frontend/src/components/MkUrlPreview.vue
+++ b/packages/frontend/src/components/MkUrlPreview.vue
@@ -27,9 +27,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 	</div>
 </template>
 <template v-else-if="tweetId && tweetExpanded">
-	<div ref="twitter">
+	<div>
 		<iframe
-			ref="tweet"
 			allow="fullscreen;web-share"
 			sandbox="allow-popups allow-popups-to-escape-sandbox allow-scripts allow-same-origin"
 			scrolling="no"
@@ -43,6 +42,22 @@ SPDX-License-Identifier: AGPL-3.0-only
 		</MkButton>
 	</div>
 </template>
+<template v-else-if="bskyDid && bskyPostRecordKey && bskyPostExpanded">
+	<div>
+		<iframe
+			allow="fullscreen;web-share"
+			sandbox="allow-popups allow-popups-to-escape-sandbox allow-scripts allow-same-origin"
+			scrolling="no"
+			:style="{ position: 'relative', width: '100%', height: `${bskyPostHeight}px`, border: 0 }"
+			:src="`https://embed.bsky.app/embed/${bskyDid}/app.bsky.feed.post/${bskyPostRecordKey}?id=${embedId}`"
+		></iframe>
+	</div>
+	<div :class="$style.action">
+		<MkButton :small="true" inline @click="bskyPostExpanded = false">
+			<i class="ti ti-x"></i> {{ i18n.ts.close }}
+		</MkButton>
+	</div>
+</template>
 <div v-else>
 	<component :is="self ? 'MkA' : 'a'" :class="[$style.link, { [$style.compact]: compact }]" :[attr]="self ? url.substring(local.length) : url" rel="nofollow noopener" :target="target" :title="url">
 		<div v-if="thumbnail && !sensitive" :class="$style.thumbnail" :style="defaultStore.state.dataSaver.urlPreview ? '' : `background-image: url('${thumbnail}')`">
@@ -67,7 +82,12 @@ SPDX-License-Identifier: AGPL-3.0-only
 	<template v-if="showActions">
 		<div v-if="tweetId" :class="$style.action">
 			<MkButton :small="true" inline @click="tweetExpanded = true">
-				<i class="ti ti-brand-x"></i> {{ i18n.ts.expandTweet }}
+				<i class="ti ti-brand-x"></i> {{ i18n.ts.expandPost }}
+			</MkButton>
+		</div>
+		<div v-if="bskyPostRecordKey" :class="$style.action">
+			<MkButton :small="true" inline @click="openBskyEmbed">
+				<i class="ti ti-brand-bluesky"></i> {{ i18n.ts.expandPost }}
 			</MkButton>
 		</div>
 		<div v-if="!playerEnabled && player.url" :class="$style.action">
@@ -126,10 +146,19 @@ const player = ref({
 	height: null,
 } as SummalyResult['player']);
 const playerEnabled = ref(false);
+
+const embedId = `embed${Math.random().toString().replace(/\D/, '')}`;
+
 const tweetId = ref<string | null>(null);
 const tweetExpanded = ref(props.detail);
-const embedId = `embed${Math.random().toString().replace(/\D/, '')}`;
 const tweetHeight = ref(150);
+
+const bskyHandleOrDid = ref<string | null>(null);
+const bskyDid = ref<string | null>(null);
+const bskyPostRecordKey = ref<string | null>(null);
+const bskyPostExpanded = ref(props.detail);
+const bskyPostHeight = ref(150);
+
 const unknownUrl = ref(false);
 
 onDeactivated(() => {
@@ -144,6 +173,19 @@ if (requestUrl.hostname === 'twitter.com' || requestUrl.hostname === 'mobile.twi
 	if (m) tweetId.value = m[1];
 }
 
+if (requestUrl.hostname === 'bsky.app') {
+	const bskyPostPageUrl = requestUrl.pathname.slice(1).split('/');
+
+	if (bskyPostPageUrl[0] === 'profile' && bskyPostPageUrl[1] && bskyPostPageUrl[2] === 'post' && bskyPostPageUrl[3]) {
+		bskyHandleOrDid.value = bskyPostPageUrl[1];
+		bskyPostRecordKey.value = bskyPostPageUrl[3];
+
+		if (bskyPostExpanded.value) {
+			openBskyEmbed();
+		}
+	}
+}
+
 if (requestUrl.hostname === 'music.youtube.com' && requestUrl.pathname.match('^/(?:watch|channel)')) {
 	requestUrl.hostname = 'www.youtube.com';
 }
@@ -180,13 +222,23 @@ window.fetch(`/url?url=${encodeURIComponent(requestUrl.href)}&lang=${versatileLa
 		sensitive.value = info.sensitive ?? false;
 	});
 
-function adjustTweetHeight(message: MessageEvent) {
-	if (message.origin !== 'https://platform.twitter.com') return;
-	const embed = message.data?.['twttr.embed'];
-	if (embed?.method !== 'twttr.private.resize') return;
-	if (embed?.id !== embedId) return;
-	const height = embed?.params[0]?.height;
-	if (height) tweetHeight.value = height;
+async function openBskyEmbed() {
+	if (bskyHandleOrDid.value == null || bskyPostRecordKey.value == null) return;
+
+	if (bskyDid.value == null) {
+		if (bskyHandleOrDid.value.startsWith('did:')) {
+			bskyDid.value = bskyHandleOrDid.value;
+		} else {
+			// handleで来ている場合はdidに変換
+			const bskyApiRes = await window.fetch(`https://public.api.bsky.app/xrpc/com.atproto.identity.resolveHandle?handle=${bskyHandleOrDid.value}`);
+			if (bskyApiRes.ok) {
+				const bskyApiData = await bskyApiRes.json() as { did: string };
+				bskyDid.value = bskyApiData.did;
+			}
+		}
+	}
+
+	bskyPostExpanded.value = true;
 }
 
 function openPlayer(): void {
@@ -199,10 +251,25 @@ function openPlayer(): void {
 	});
 }
 
-window.addEventListener('message', adjustTweetHeight);
+function adjustSocialsEmbedHeight(message: MessageEvent) {
+	if (message.origin === 'https://platform.twitter.com') {
+		const embed = message.data?.['twttr.embed'];
+		if (embed?.method === 'twttr.private.resize' && embed?.id === embedId) {
+			const height = embed?.params[0]?.height;
+			if (height) tweetHeight.value = height;
+		}
+	} else if (message.origin === 'https://embed.bsky.app') {
+		if (message.data?.id === embedId) {
+			const height = message.data?.height;
+			if (height) bskyPostHeight.value = height;
+		}
+	}
+}
+
+window.addEventListener('message', adjustSocialsEmbedHeight);
 
 onUnmounted(() => {
-	window.removeEventListener('message', adjustTweetHeight);
+	window.removeEventListener('message', adjustSocialsEmbedHeight);
 });
 </script>
 
diff --git a/packages/frontend/src/index.html b/packages/frontend/src/index.html
index 08ff0c58dd..14dfe62dba 100644
--- a/packages/frontend/src/index.html
+++ b/packages/frontend/src/index.html
@@ -22,7 +22,7 @@
 			style-src 'self' 'unsafe-inline';
 			img-src 'self' data: blob: www.google.com xn--931a.moe localhost:3000 localhost:5173 127.0.0.1:5173 127.0.0.1:3000;
 			media-src 'self' localhost:3000 localhost:5173 127.0.0.1:5173 127.0.0.1:3000;
-			connect-src 'self' localhost:3000 localhost:5173 127.0.0.1:5173 127.0.0.1:3000 https://newassets.hcaptcha.com;
+			connect-src 'self' localhost:3000 localhost:5173 127.0.0.1:5173 127.0.0.1:3000 https://newassets.hcaptcha.com https://public.api.bsky.app;
 			frame-src *;"
 	/>
 	<meta property="og:site_name" content="[DEV BUILD] Misskey" />