diff --git a/api/auth.ts b/api/auth.ts
index 8b54065f9..b0701907f 100644
--- a/api/auth.ts
+++ b/api/auth.ts
@@ -49,3 +49,21 @@ export const postSignUp = async ({ email, password }: { email: string; password:
 
   return token;
 };
+
+export const getUser = async () => {
+  const token = window.localStorage.getItem('accessToken');
+
+  const response = await fetch(`${BASE_URL}/users`, {
+    headers: {
+      Authorization: `Bearer ${token}`,
+    },
+  });
+
+  const body = await response.json();
+
+  if (!response?.ok) {
+    throw new Error(body.message);
+  }
+
+  return {...body[0], imageSource: body[0]['image_source']};
+};
diff --git a/components/layout/header/Header.tsx b/components/layout/header/Header.tsx
index 4980e984c..21383de3f 100644
--- a/components/layout/header/Header.tsx
+++ b/components/layout/header/Header.tsx
@@ -1,30 +1,15 @@
 import Link from 'next/link';
 import styles from './Header.module.css';
-import { useEffect, useState } from 'react';
+import { useContext } from 'react';
 import { useRouter } from 'next/router';
-import type { User } from '@/types/types';
-import { getUser } from '@/api/api';
 import Image from 'next/image';
+import { authContext } from '@/context/authProvider';
 
 function Header() {
-  const [user, setUser] = useState<User | null>(null);
+  const { user } = useContext(authContext);
   const { pathname } = useRouter();
   const headerPosition = pathname === '/folder' ? styles.static : '';
 
-  useEffect(() => {
-    const fetchUser = async () => {
-      try {
-        const user = await getUser();
-        setUser(user);
-      } catch (err) {
-        const error = err as Error;
-        console.error(error.message);
-      }
-    };
-
-    fetchUser();
-  }, []);
-
   return (
     <header className={`${styles.headerArea} ${headerPosition}`}>
       <div className={styles.headerGroup}>
diff --git a/context/authProvider.tsx b/context/authProvider.tsx
new file mode 100644
index 000000000..58b2a5492
--- /dev/null
+++ b/context/authProvider.tsx
@@ -0,0 +1,61 @@
+import { getUser, postSignIn, postSignUp } from '@/api/auth';
+import { PropsWithChildren, createContext, useEffect, useState } from 'react';
+
+interface User {
+  id: number;
+  name: string;
+  imageSource: string;
+  email: string;
+}
+
+interface AuthContext {
+  user?: User;
+  signIn: (data: any) => void;
+  signUp: (data: any) => void;
+  signOut: () => void;
+}
+
+export const authContext = createContext<AuthContext>({
+  user: undefined,
+  signIn: () => {},
+  signUp: () => {},
+  signOut: () => {},
+});
+
+const AuthProvider = ({ children }: PropsWithChildren) => {
+  const [user, setUser] = useState<User>();
+
+  const signIn = async (data: any) => {
+    const { accessToken, refreshToken } = await postSignIn(data);
+
+    window.localStorage.setItem('accessToken', accessToken);
+    window.localStorage.setItem('refreshToken', refreshToken);
+  };
+  const signUp = async (data: any) => {
+    const { accessToken, refreshToken } = await postSignUp(data);
+
+    window.localStorage.setItem('accessToken', accessToken);
+    window.localStorage.setItem('refreshToken', refreshToken);
+  };
+
+  const signOut = () => {
+    // TODO: 로그아웃 기능 구현
+  };
+
+  useEffect(() => {
+    const fetchUser = async () => {
+      try {
+        const user = await getUser();
+        setUser(user);
+      } catch (error) {
+        console.error((error as Error).message);
+      }
+    };
+
+    fetchUser();
+  }, []);
+
+  return <authContext.Provider value={{ user, signIn, signUp, signOut }}>{children}</authContext.Provider>;
+};
+
+export default AuthProvider;
diff --git a/hooks/useAuth.ts b/hooks/useAuth.ts
new file mode 100644
index 000000000..ed499bd2a
--- /dev/null
+++ b/hooks/useAuth.ts
@@ -0,0 +1,11 @@
+import { authContext } from '@/context/authProvider';
+import { useContext } from 'react';
+
+export const useAuth = () => {
+  const context = useContext(authContext);
+  if (!context) {
+    throw new Error('반드시 AuthProvider 안에서 사용해야 합니다.');
+  }
+
+  return context;
+};
diff --git a/next.config.js b/next.config.js
index 542f8ca62..a622e53db 100644
--- a/next.config.js
+++ b/next.config.js
@@ -12,6 +12,12 @@ const nextConfig = {
         port: '',
         pathname: '/badges/**',
       },
+      {
+        protocol: 'https',
+        hostname: 'avatars.githubusercontent.com',
+        port: '',
+        pathname: '/u/**',
+      },
     ],
   },
 };
diff --git a/pages/_app.tsx b/pages/_app.tsx
index 7e4c56d3d..c9aae58da 100644
--- a/pages/_app.tsx
+++ b/pages/_app.tsx
@@ -2,6 +2,7 @@ import '@/styles/globals.css';
 import { Noto_Sans_KR } from 'next/font/google';
 import type { AppProps } from 'next/app';
 import Layout from '@/components/layout/Layout';
+import AuthProvider from '@/context/authProvider';
 
 const notoSansKR = Noto_Sans_KR({
   subsets: ['latin'],
@@ -11,9 +12,11 @@ const notoSansKR = Noto_Sans_KR({
 export default function App({ Component, pageProps }: AppProps) {
   return (
     <main className={notoSansKR.className}>
-      <Layout>
-        <Component {...pageProps} />
-      </Layout>
+      <AuthProvider>
+        <Layout>
+          <Component {...pageProps} />
+        </Layout>
+      </AuthProvider>
     </main>
   );
 }
diff --git a/pages/signin.tsx b/pages/signin.tsx
index 98d1f16b9..9ff353797 100644
--- a/pages/signin.tsx
+++ b/pages/signin.tsx
@@ -1,6 +1,7 @@
 import { postSignIn } from '@/api/auth';
 import InputGroup from '@/components/pages/sign/InputGroup';
 import { ERROR_MESSAGE, INPUT_INFO } from '@/constants/sign';
+import { useAuth } from '@/hooks/useAuth';
 import styles from '@/styles/sign.module.css';
 import Image from 'next/image';
 import Link from 'next/link';
@@ -10,14 +11,11 @@ import { FormProvider, useForm } from 'react-hook-form';
 export default function SignIn() {
   const methods = useForm();
   const router = useRouter();
+  const { signIn } = useAuth();
 
   const onSubmit = async (data: any) => {
     try {
-      const { accessToken, refreshToken } = await postSignIn(data);
-
-      window.localStorage.setItem('accessToken', accessToken);
-      window.localStorage.setItem('refreshToken', refreshToken);
-
+      signIn(data);
       router.push('/folder');
     } catch {
       methods.setError(INPUT_INFO.email.id, {
diff --git a/pages/signup.tsx b/pages/signup.tsx
index 157f91b96..5c7002cfe 100644
--- a/pages/signup.tsx
+++ b/pages/signup.tsx
@@ -1,6 +1,7 @@
 import { postCheckEmail, postSignUp } from '@/api/auth';
 import InputGroup from '@/components/pages/sign/InputGroup';
 import { INPUT_INFO } from '@/constants/sign';
+import { useAuth } from '@/hooks/useAuth';
 import styles from '@/styles/sign.module.css';
 import Image from 'next/image';
 import Link from 'next/link';
@@ -9,6 +10,7 @@ import { useState } from 'react';
 import { FormProvider, useForm } from 'react-hook-form';
 
 export default function SignIn() {
+  const { signUp } = useAuth();
   const methods = useForm();
   const [emailCheckFailed, setEmailCheckFailed] = useState(false);
   const router = useRouter();
@@ -33,10 +35,7 @@ export default function SignIn() {
     }
 
     try {
-      const { accessToken, refreshToken } = await postSignUp({ email, password });
-
-      window.localStorage.setItem('accessToken', accessToken);
-      window.localStorage.setItem('refreshToken', refreshToken);
+      signUp({ email, password });
 
       router.push('/folder');
     } catch (error) {