diff --git a/src/axios/authService.ts b/src/axios/authService.ts
index 9a4c6e3..eab3e62 100644
--- a/src/axios/authService.ts
+++ b/src/axios/authService.ts
@@ -55,11 +55,28 @@ export const register = async (data: RegisterData): Promise<{ message: string }>
 
 // 로그아웃 API
 export const logout = async (): Promise<void> => {
-    await axios.post('/auth/logout');
+    try {
+        // HttpOnly 쿠키 삭제를 위해 서버의 로그아웃 API를 GET 방식으로 호출
+        await axios.get('/auth/logout');
+    } catch (error) {
+        // 서버 로그아웃 실패하더라도 클라이언트는 정리 진행
+    }
+
+    // 로컬 스토리지 정리
     localStorage.removeItem('accessToken');
     localStorage.removeItem('refreshToken');
-    document.cookie = 'access_token=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/';
-    document.cookie = 'refresh_token=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=/';
+
+    // 쿠키 정리
+    const cookieNames = ['access_token', 'refresh_token'];
+    const domain = window.location.hostname;
+    const paths = ['/', '/api']; // 가능한 경로들
+
+    cookieNames.forEach(name => {
+        paths.forEach(path => {
+            document.cookie = `${name}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=${path}`;
+            document.cookie = `${name}=; expires=Thu, 01 Jan 1970 00:00:00 UTC; path=${path}; domain=${domain}`;
+        });
+    });
 };
 
 // 토큰이 유효한지 확인
diff --git a/src/components/header/AppHeaderDropdown.tsx b/src/components/header/AppHeaderDropdown.tsx
index aac5acd..e79124c 100644
--- a/src/components/header/AppHeaderDropdown.tsx
+++ b/src/components/header/AppHeaderDropdown.tsx
@@ -19,12 +19,16 @@ import {
   cilSettings,
   cilTask,
   cilUser,
+  cilAccountLogout,
 } from '@coreui/icons'
+import { useAuth } from 'src/hooks/useAuth'
 import CIcon from '@coreui/icons-react'
 
 import avatar8 from 'src/assets/images/avatars/8.jpg'
 
 const AppHeaderDropdown = () => {
+  const { logout } = useAuth()
+
   return (
     <CDropdown variant="nav-item">
       <CDropdownToggle className="py-0 pe-0" caret={false}>
@@ -84,9 +88,9 @@ const AppHeaderDropdown = () => {
           </CBadge>
         </CDropdownItem>
         <CDropdownDivider />
-        <CDropdownItem href="#">
-          <CIcon icon={cilLockLocked} className="me-2" />
-          Lock Account
+        <CDropdownItem onClick={logout} style={{ cursor: 'pointer' }}>
+          <CIcon icon={cilAccountLogout} className="me-2" />
+          Logout
         </CDropdownItem>
       </CDropdownMenu>
     </CDropdown>
diff --git a/src/context/AuthContext.tsx b/src/context/AuthContext.tsx
index 967e451..40ebdd2 100644
--- a/src/context/AuthContext.tsx
+++ b/src/context/AuthContext.tsx
@@ -1,6 +1,6 @@
 import React, { createContext, useReducer, useEffect } from 'react';
 
-import { isTokenValid, getAccessTokenFromCookie, getUserFromToken, getRefreshTokenFromCookie, renewAccessToken } from 'src/axios/authService';
+import { isTokenValid, getAccessTokenFromCookie, getUserFromToken, getRefreshTokenFromCookie, renewAccessToken, logout as apiLogout } from 'src/axios/authService';
 
 // 사용자 타입 정의
 export interface Member {
@@ -63,6 +63,9 @@ const authReducer = (state: AuthState, action: AuthAction): AuthState => {
             };
         case 'LOGOUT':
             localStorage.removeItem('accessToken');
+            localStorage.removeItem('access_token');
+            localStorage.removeItem('refreshToken');
+            localStorage.removeItem('refresh_token');
             return {
                 ...state,
                 isAuthenticated: false,
@@ -72,6 +75,9 @@ const authReducer = (state: AuthState, action: AuthAction): AuthState => {
             };
         case 'AUTH_ERROR':
             localStorage.removeItem('accessToken');
+            localStorage.removeItem('access_token');
+            localStorage.removeItem('refreshToken');
+            localStorage.removeItem('refresh_token');
             return {
                 ...state,
                 isAuthenticated: false,
@@ -114,8 +120,14 @@ export const AuthProvider: React.FC<{ children: React.ReactNode }> = ({ children
     };
 
     // 로그아웃 함수
-    const logout = () => {
-        dispatch({ type: 'LOGOUT' });
+    const logout = async () => {
+        try {
+            await apiLogout();
+        } catch (error) {
+            console.error('Logout failed:', error);
+        } finally {
+            dispatch({ type: 'LOGOUT' });
+        }
     };
 
     // 초기 인증 상태 확인