diff --git a/src/main/kotlin/app/ieoseo/server/global/security/UserProvisioningFilter.kt b/src/main/kotlin/app/ieoseo/server/global/security/UserProvisioningFilter.kt
index a2abe7c..743ff5c 100644
--- a/src/main/kotlin/app/ieoseo/server/global/security/UserProvisioningFilter.kt
+++ b/src/main/kotlin/app/ieoseo/server/global/security/UserProvisioningFilter.kt
@@ -24,6 +24,9 @@ class UserProvisioningFilter(
             if (user == null) {
                 // 이메일은 nullable(미제공 provider 지원, ADR-0017) — placeholder 합성하지 않는다.
                 repo.save(User(id = principal.userId, email = principal.email, nickname = defaultNickname(principal)))
+                // 이번 요청에 막 생성된 신규 사용자임을 표시 → AuthController.me 가 isNew 로 반환
+                // (client 가 닉네임 설정 화면을 띄우는 신호). provisioning 은 보통 첫 /auth/me 요청.
+                request.setAttribute(NEW_USER_REQUEST_ATTR, true)
             } else if (!user.isActive) {
                 // 탈퇴 사용자는 토큰 만료 전까지 유효한 Supabase JWT 로 접근할 수 있으므로 명시 차단한다.
                 response.sendError(HttpServletResponse.SC_FORBIDDEN, "비활성화된 계정입니다")
@@ -39,5 +42,9 @@ class UserProvisioningFilter(
             ?: principal.email?.substringBefore('@')?.take(NICKNAME_MAX_LENGTH)?.ifBlank { null }
             ?: "user"
 
-    private companion object { const val NICKNAME_MAX_LENGTH = 20 }
+    companion object {
+        /** 신규 provisioning 표시용 요청 attribute 키(AuthController.me 가 읽어 isNew 반환). */
+        const val NEW_USER_REQUEST_ATTR = "app.ieoseo.newUser"
+        private const val NICKNAME_MAX_LENGTH = 20
+    }
 }
diff --git a/src/main/kotlin/app/ieoseo/server/user/controller/AuthController.kt b/src/main/kotlin/app/ieoseo/server/user/controller/AuthController.kt
index 7743206..de0b60a 100644
--- a/src/main/kotlin/app/ieoseo/server/user/controller/AuthController.kt
+++ b/src/main/kotlin/app/ieoseo/server/user/controller/AuthController.kt
@@ -3,8 +3,10 @@ package app.ieoseo.server.user.controller
 import app.ieoseo.server.user.dto.*
 
 import app.ieoseo.server.global.security.AuthPrincipal
+import app.ieoseo.server.global.security.UserProvisioningFilter
 import app.ieoseo.server.user.service.AuthService
 import app.ieoseo.server.settings.service.UserSettingsService
+import jakarta.servlet.http.HttpServletRequest
 import app.ieoseo.server.global.common.ApiResponse
 import app.ieoseo.server.settings.dto.SettingsResponse
 import app.ieoseo.server.settings.dto.UpdateSettingsRequest
@@ -34,8 +36,15 @@ class AuthController(
     private val userSettingsService: UserSettingsService,
 ) {
     @GetMapping("/me")
-    fun me(@AuthenticationPrincipal principal: AuthPrincipal): ApiResponse<UserResponse> =
-        ApiResponse.ok(UserResponse.from(authService.me(principal.userId)))
+    fun me(
+        @AuthenticationPrincipal principal: AuthPrincipal,
+        request: HttpServletRequest,
+    ): ApiResponse<UserResponse> {
+        // UserProvisioningFilter 가 이번 요청에 사용자를 막 생성했으면 isNew=true 로 알린다
+        // (client 가 닉네임 설정 화면을 띄움). 기존 사용자면 attribute 없음 → false.
+        val isNew = request.getAttribute(UserProvisioningFilter.NEW_USER_REQUEST_ATTR) == true
+        return ApiResponse.ok(UserResponse.from(authService.me(principal.userId), isNew))
+    }
 
     /** 프로필(닉네임) 수정(이슈 #56). 인증 필요. 검증 실패 → 400, 사용자 없음 → 404. */
     @PatchMapping("/me")
diff --git a/src/main/kotlin/app/ieoseo/server/user/dto/AuthDtos.kt b/src/main/kotlin/app/ieoseo/server/user/dto/AuthDtos.kt
index 8a3a549..2d2fa4e 100644
--- a/src/main/kotlin/app/ieoseo/server/user/dto/AuthDtos.kt
+++ b/src/main/kotlin/app/ieoseo/server/user/dto/AuthDtos.kt
@@ -13,8 +13,11 @@ data class UserResponse(
     val id: UUID,
     val email: String?,
     val nickname: String,
+    /** 이번 요청에 막 provisioning 된 신규 사용자인지(client 닉네임 설정 화면 트리거용). */
+    val isNew: Boolean = false,
 ) {
     companion object {
-        fun from(user: User): UserResponse = UserResponse(id = user.id, email = user.email, nickname = user.nickname)
+        fun from(user: User, isNew: Boolean = false): UserResponse =
+            UserResponse(id = user.id, email = user.email, nickname = user.nickname, isNew = isNew)
     }
 }
diff --git a/src/test/kotlin/app/ieoseo/server/global/security/UserProvisioningFilterTest.kt b/src/test/kotlin/app/ieoseo/server/global/security/UserProvisioningFilterTest.kt
index a2c3c89..2c2a52a 100644
--- a/src/test/kotlin/app/ieoseo/server/global/security/UserProvisioningFilterTest.kt
+++ b/src/test/kotlin/app/ieoseo/server/global/security/UserProvisioningFilterTest.kt
@@ -96,6 +96,33 @@ class UserProvisioningFilterTest {
         assertEquals("user", user.nickname)
     }
 
+    @Test
+    fun `신규 생성 시 요청에 신규 표시 attribute 를 설정한다`() {
+        authenticate(AuthPrincipal(userId, email = "jiwoo@ieoseo.app"))
+        `when`(repo.findById(userId)).thenReturn(Optional.empty())
+
+        filter.doFilter(request, response, chain)
+
+        verify(request).setAttribute(
+            eq(UserProvisioningFilter.NEW_USER_REQUEST_ATTR),
+            eq(true),
+        )
+    }
+
+    @Test
+    fun `기존 사용자면 신규 표시 attribute 를 설정하지 않는다`() {
+        authenticate(AuthPrincipal(userId, email = "jiwoo@ieoseo.app"))
+        `when`(repo.findById(userId))
+            .thenReturn(Optional.of(User(id = userId, email = "jiwoo@ieoseo.app", nickname = "jiwoo")))
+
+        filter.doFilter(request, response, chain)
+
+        verify(request, never()).setAttribute(
+            eq(UserProvisioningFilter.NEW_USER_REQUEST_ATTR),
+            org.mockito.ArgumentMatchers.any(),
+        )
+    }
+
     @Test
     fun `활성 사용자가 이미 존재하면 저장하지 않고 체인을 진행한다`() {
         authenticate(AuthPrincipal(userId, email = "jiwoo@ieoseo.app"))
diff --git a/src/test/kotlin/app/ieoseo/server/user/controller/AuthControllerWebMvcTest.kt b/src/test/kotlin/app/ieoseo/server/user/controller/AuthControllerWebMvcTest.kt
index 6fc455c..6dca709 100644
--- a/src/test/kotlin/app/ieoseo/server/user/controller/AuthControllerWebMvcTest.kt
+++ b/src/test/kotlin/app/ieoseo/server/user/controller/AuthControllerWebMvcTest.kt
@@ -3,6 +3,7 @@ package app.ieoseo.server.user.controller
 import app.ieoseo.server.user.domain.User
 import app.ieoseo.server.global.security.AuthPrincipal
 import app.ieoseo.server.global.security.SecurityConfig
+import app.ieoseo.server.global.security.UserProvisioningFilter
 import app.ieoseo.server.user.service.AuthService
 import app.ieoseo.server.settings.service.UpdateUserSettingsCommand
 import app.ieoseo.server.settings.service.UserSettingsService
@@ -97,6 +98,20 @@ class AuthControllerWebMvcTest {
             .andExpect(jsonPath("$.data.id").value(userId.toString()))
             .andExpect(jsonPath("$.data.email").value("jiwoo@ieoseo.app"))
             .andExpect(jsonPath("$.data.nickname").value("지우"))
+            .andExpect(jsonPath("$.data.isNew").value(false))
+    }
+
+    @Test
+    fun `me 는 신규 provisioning 요청이면 isNew true 를 반환한다`() {
+        `when`(authService.me(userId)).thenReturn(user())
+
+        mockMvc.perform(
+            get("/api/v1/auth/me")
+                .with(authentication(asUser()))
+                .requestAttr(UserProvisioningFilter.NEW_USER_REQUEST_ATTR, true),
+        )
+            .andExpect(status().isOk)
+            .andExpect(jsonPath("$.data.isNew").value(true))
     }
 
     @Test