diff --git a/apps/web/src/app/mypage/_actions/logout.ts b/apps/web/src/app/mypage/_actions/logout.ts
index 991c4c38..c7108f78 100644
--- a/apps/web/src/app/mypage/_actions/logout.ts
+++ b/apps/web/src/app/mypage/_actions/logout.ts
@@ -4,10 +4,9 @@ import { cookies } from 'next/headers';
 
 import { deleteFcmToken } from '@/apis/deleteFcmToken';
 import { serverApi } from '@/apis/server';
+import { clearAuthCookies } from '@/app/mypage/_common/_actions/clearAuthCookies';
 import { ENDPOINTS } from '@/consts/api';
 
-const AUTH_COOKIE_NAMES = ['access_token', 'refresh_token', 'device_id'] as const;
-
 export const logout = async () => {
   const cookieStore = await cookies();
   const deviceId = cookieStore.get('device_id')?.value;
@@ -26,7 +25,5 @@ export const logout = async () => {
     // 백엔드 실패해도 로컬 쿠키는 삭제
   }
 
-  AUTH_COOKIE_NAMES.forEach(cookieName => {
-    if (cookieStore.has(cookieName)) cookieStore.delete(cookieName);
-  });
+  await clearAuthCookies();
 };
diff --git a/apps/web/src/app/mypage/_common/_actions/clearAuthCookies.ts b/apps/web/src/app/mypage/_common/_actions/clearAuthCookies.ts
new file mode 100644
index 00000000..623f71f6
--- /dev/null
+++ b/apps/web/src/app/mypage/_common/_actions/clearAuthCookies.ts
@@ -0,0 +1,14 @@
+'use server';
+
+import { cookies } from 'next/headers';
+
+const AUTH_COOKIE_NAMES = ['access_token', 'refresh_token', 'device_id'] as const;
+
+/** 브라우저 httpOnly 인증 쿠키는 JS 로 지울 수 없어 서버 액션으로 폐기한다 */
+export const clearAuthCookies = async () => {
+  const cookieStore = await cookies();
+
+  AUTH_COOKIE_NAMES.forEach(cookieName => {
+    if (cookieStore.has(cookieName)) cookieStore.delete(cookieName);
+  });
+};
diff --git a/apps/web/src/app/mypage/withdraw/_hooks/useDeleteMe.ts b/apps/web/src/app/mypage/withdraw/_hooks/useDeleteMe.ts
index 1d1f6c5b..0714f367 100644
--- a/apps/web/src/app/mypage/withdraw/_hooks/useDeleteMe.ts
+++ b/apps/web/src/app/mypage/withdraw/_hooks/useDeleteMe.ts
@@ -1,8 +1,10 @@
 import { WEBBRIDGE_MESSAGE_TYPE } from '@piki/core';
+import * as Sentry from '@sentry/nextjs';
 import { useMutation, useQueryClient } from '@tanstack/react-query';
 import { useRouter } from 'next/navigation';
 import { toast } from 'sonner';
 
+import { clearAuthCookies } from '@/app/mypage/_common/_actions/clearAuthCookies';
 import { ROUTES } from '@/consts/route';
 import { isGlobalNetError } from '@/utils/apiError';
 import { deleteCookie } from '@/utils/cookie';
@@ -17,14 +19,19 @@ export const useDeleteMe = () => {
 
   const { mutate: deleteMeMutation, isPending: isDeleteMePending } = useMutation({
     mutationFn: deleteMe,
-    onSuccess: () => {
+    onSuccess: async () => {
       if (isWebview()) {
         deleteCookie('access_token');
         deleteCookie('refresh_token');
 
         WebBridge.postMessage({ type: WEBBRIDGE_MESSAGE_TYPE.WEB_REQ_LOGOUT });
+      } else {
+        /** 웹인 경우 쿠키 삭제 */
+        await clearAuthCookies();
       }
 
+      Sentry.setUser(null);
+
       queryClient.clear();
       router.replace(ROUTES.ROOT);
     },
diff --git a/apps/web/src/proxy.ts b/apps/web/src/proxy.ts
index 11f13070..6b308509 100644
--- a/apps/web/src/proxy.ts
+++ b/apps/web/src/proxy.ts
@@ -217,8 +217,8 @@ const handleTokenRefresh = async (request: NextRequest) => {
   }
 };
 
-/** 세션 만료 신호로 진입한 로그인 - 토큰 폐기 후 페이지 진입 */
-const handleSessionExpired = (request: NextRequest) => {
+/** 세션 만료·탈퇴 신호로 진입한 로그인 - 토큰 폐기 후 페이지 진입 */
+const handleAuthReset = (request: NextRequest) => {
   /** 페이지 렌더링 시 죽은 토큰을 보지 않도록 남은 쿠키에서 삭제 */
   const remainingCookies = request.cookies
     .getAll()
@@ -255,10 +255,12 @@ export const proxy = async (request: NextRequest) => {
 
   /** 퍼블릭 영역 */
   if (routeType === 'PUBLIC') {
-    const isSessionExpired =
-      pathname === ROUTES.LOGIN &&
-      request.nextUrl.searchParams.get(QUERY_ACTION.KEY) === QUERY_ACTION.VALUE.SESSION_EXPIRED;
-    if (isSessionExpired) return handleSessionExpired(request);
+    const loginAction =
+      pathname === ROUTES.LOGIN ? request.nextUrl.searchParams.get(QUERY_ACTION.KEY) : null;
+    const isAuthReset =
+      loginAction === QUERY_ACTION.VALUE.SESSION_EXPIRED ||
+      loginAction === QUERY_ACTION.VALUE.WITHDRAWN_ACCOUNT;
+    if (isAuthReset) return handleAuthReset(request);
 
     const needsRestore =
       pathname === ROUTES.LOGIN &&