diff --git a/src/app/[locale]/(protected)/accounting/bills/page.tsx b/src/app/[locale]/(protected)/accounting/bills/page.tsx
index 0332c219..052cd949 100644
--- a/src/app/[locale]/(protected)/accounting/bills/page.tsx
+++ b/src/app/[locale]/(protected)/accounting/bills/page.tsx
@@ -47,7 +47,7 @@ async function getBills(params: {
     queryParams.append('per_page', '20');
 
     const response = await fetch(
-      `${process.env.API_URL}/api/v1/bills?${queryParams.toString()}`,
+      `${process.env.NEXT_PUBLIC_API_URL}/api/v1/bills?${queryParams.toString()}`,
       { method: 'GET', headers, cache: 'no-store' }
     );
 
diff --git a/src/app/[locale]/(protected)/sales/pricing-management/page.tsx b/src/app/[locale]/(protected)/sales/pricing-management/page.tsx
index 7934002d..5b9ef67e 100644
--- a/src/app/[locale]/(protected)/sales/pricing-management/page.tsx
+++ b/src/app/[locale]/(protected)/sales/pricing-management/page.tsx
@@ -150,7 +150,7 @@ async function getItemsList(): Promise<ItemApiData[]> {
     const headers = await getApiHeaders();
 
     const response = await fetch(
-      `${process.env.API_URL}/api/v1/items?group_id=1&size=100`,
+      `${process.env.NEXT_PUBLIC_API_URL}/api/v1/items?group_id=1&size=100`,
       {
         method: 'GET',
         headers,
@@ -183,7 +183,7 @@ async function getPricingList(): Promise<PriceApiItem[]> {
     const headers = await getApiHeaders();
 
     const response = await fetch(
-      `${process.env.API_URL}/api/v1/pricing?size=100`,
+      `${process.env.NEXT_PUBLIC_API_URL}/api/v1/pricing?size=100`,
       {
         method: 'GET',
         headers,
diff --git a/src/components/attendance/actions.ts b/src/components/attendance/actions.ts
index 2055cbe5..41b7f2c7 100644
--- a/src/components/attendance/actions.ts
+++ b/src/components/attendance/actions.ts
@@ -104,7 +104,7 @@ export async function checkIn(
   data: CheckInRequest
 ): Promise<{ success: boolean; data?: AttendanceRecord; error?: string; __authError?: boolean }> {
   try {
-    const { response, error } = await serverFetch(`${process.env.API_URL}/v1/attendances/check-in`, {
+    const { response, error } = await serverFetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/attendances/check-in`, {
       method: 'POST',
       body: JSON.stringify({
         user_id: data.userId,
@@ -158,7 +158,7 @@ export async function checkOut(
 ): Promise<{ success: boolean; data?: AttendanceRecord; error?: string }> {
   try {
     const headers = await getApiHeaders();
-    const response = await fetch(`${process.env.API_URL}/v1/attendances/check-out`, {
+    const response = await fetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/attendances/check-out`, {
       method: 'POST',
       headers,
       body: JSON.stringify({
@@ -218,7 +218,7 @@ export async function getTodayAttendance(): Promise<{
     const today = new Date().toISOString().split('T')[0];
 
     const { response, error } = await serverFetch(
-      `${process.env.API_URL}/v1/attendances?date=${today}&per_page=1`,
+      `${process.env.NEXT_PUBLIC_API_URL}/v1/attendances?date=${today}&per_page=1`,
       {
         method: 'GET',
       }
diff --git a/src/components/hr/CardManagement/actions.ts b/src/components/hr/CardManagement/actions.ts
index df9a562b..bee10246 100644
--- a/src/components/hr/CardManagement/actions.ts
+++ b/src/components/hr/CardManagement/actions.ts
@@ -55,7 +55,7 @@ interface CardResponse {
 }
 
 // API URL (without double /api)
-const API_URL = `${process.env.NEXT_PUBLIC_API_URL || process.env.API_URL}/api`;
+const API_URL = `${process.env.NEXT_PUBLIC_API_URL}/api`;
 
 // 상태 매핑: API → Frontend
 function mapApiStatusToFrontend(apiStatus: 'active' | 'inactive'): CardStatus {
diff --git a/src/components/hr/EmployeeManagement/actions.ts b/src/components/hr/EmployeeManagement/actions.ts
index b6c806f3..05fc9d2c 100644
--- a/src/components/hr/EmployeeManagement/actions.ts
+++ b/src/components/hr/EmployeeManagement/actions.ts
@@ -371,7 +371,7 @@ export async function getPositions(type?: 'rank' | 'title'): Promise<PositionIte
       searchParams.set('type', type);
     }
 
-    const url = `${process.env.API_URL}/api/v1/positions?${searchParams.toString()}`;
+    const url = `${process.env.NEXT_PUBLIC_API_URL}/api/v1/positions?${searchParams.toString()}`;
 
     const response = await fetch(url, {
       method: 'GET',
@@ -417,7 +417,7 @@ export async function getDepartments(): Promise<DepartmentItem[]> {
     const headers = await getApiHeaders();
 
     const response = await fetch(
-      `${process.env.API_URL}/api/v1/departments`,
+      `${process.env.NEXT_PUBLIC_API_URL}/api/v1/departments`,
       {
         method: 'GET',
         headers,
diff --git a/src/components/hr/EmployeeManagement/utils.ts b/src/components/hr/EmployeeManagement/utils.ts
index ebfdf77d..d901c9e0 100644
--- a/src/components/hr/EmployeeManagement/utils.ts
+++ b/src/components/hr/EmployeeManagement/utils.ts
@@ -22,7 +22,7 @@ import type {
 // 프로필 이미지 URL 변환
 // ============================================
 
-const API_URL = process.env.NEXT_PUBLIC_API_URL || process.env.API_URL || '';
+const API_URL = process.env.NEXT_PUBLIC_API_URL || '';
 
 /**
  * 프로필 이미지 경로를 전체 URL로 변환
diff --git a/src/components/hr/SalaryManagement/actions.ts b/src/components/hr/SalaryManagement/actions.ts
index 1d06ce2d..29da783c 100644
--- a/src/components/hr/SalaryManagement/actions.ts
+++ b/src/components/hr/SalaryManagement/actions.ts
@@ -86,7 +86,7 @@ interface BulkUpdateResponse {
 }
 
 // API URL
-const API_URL = `${process.env.NEXT_PUBLIC_API_URL || process.env.API_URL}/api`;
+const API_URL = `${process.env.NEXT_PUBLIC_API_URL}/api`;
 
 // API → Frontend 변환 (목록용)
 function transformApiToFrontend(apiData: SalaryApiData): SalaryRecord {
diff --git a/src/components/hr/VacationManagement/actions.ts b/src/components/hr/VacationManagement/actions.ts
index 0f59ffd9..cef02bfc 100644
--- a/src/components/hr/VacationManagement/actions.ts
+++ b/src/components/hr/VacationManagement/actions.ts
@@ -172,7 +172,7 @@ interface PaginatedResponse<T> {
 }
 
 // API URL
-const API_URL = `${process.env.NEXT_PUBLIC_API_URL || process.env.API_URL}/api`;
+const API_URL = `${process.env.NEXT_PUBLIC_API_URL}/api`;
 
 /**
  * API 응답에서 프론트엔드 형식으로 변환
diff --git a/src/components/items/ItemDetailClient.tsx b/src/components/items/ItemDetailClient.tsx
index 28928983..0097d906 100644
--- a/src/components/items/ItemDetailClient.tsx
+++ b/src/components/items/ItemDetailClient.tsx
@@ -86,7 +86,7 @@ function getStorageUrl(path: string | undefined): string | null {
     return path;
   }
   // 상대 경로인 경우
-  const apiUrl = process.env.API_URL || '';
+  const apiUrl = process.env.NEXT_PUBLIC_API_URL || '';
   return `${apiUrl}/storage/${path}`;
 }
 
diff --git a/src/components/process-management/actions.ts b/src/components/process-management/actions.ts
index 2f770948..9a646002 100644
--- a/src/components/process-management/actions.ts
+++ b/src/components/process-management/actions.ts
@@ -139,7 +139,7 @@ export async function getProcessList(params?: {
     if (params?.process_type) searchParams.set('process_type', params.process_type);
 
     const { response, error } = await serverFetch(
-      `${process.env.API_URL}/v1/processes?${searchParams.toString()}`,
+      `${process.env.NEXT_PUBLIC_API_URL}/v1/processes?${searchParams.toString()}`,
       { method: 'GET', cache: 'no-store' }
     );
 
@@ -177,7 +177,7 @@ export async function getProcessList(params?: {
  */
 export async function getProcessById(id: string): Promise<{ success: boolean; data?: Process; error?: string; __authError?: boolean }> {
   try {
-    const { response, error } = await serverFetch(`${process.env.API_URL}/v1/processes/${id}`, {
+    const { response, error } = await serverFetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/processes/${id}`, {
       method: 'GET',
       cache: 'no-store',
     });
@@ -210,7 +210,7 @@ export async function createProcess(data: ProcessFormData): Promise<{ success: b
   try {
     const apiData = transformFrontendToApi(data);
 
-    const { response, error } = await serverFetch(`${process.env.API_URL}/v1/processes`, {
+    const { response, error } = await serverFetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/processes`, {
       method: 'POST',
       body: JSON.stringify(apiData),
     });
@@ -243,7 +243,7 @@ export async function updateProcess(id: string, data: ProcessFormData): Promise<
   try {
     const apiData = transformFrontendToApi(data);
 
-    const { response, error } = await serverFetch(`${process.env.API_URL}/v1/processes/${id}`, {
+    const { response, error } = await serverFetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/processes/${id}`, {
       method: 'PUT',
       body: JSON.stringify(apiData),
     });
@@ -274,7 +274,7 @@ export async function updateProcess(id: string, data: ProcessFormData): Promise<
  */
 export async function deleteProcess(id: string): Promise<{ success: boolean; error?: string; __authError?: boolean }> {
   try {
-    const { response, error } = await serverFetch(`${process.env.API_URL}/v1/processes/${id}`, {
+    const { response, error } = await serverFetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/processes/${id}`, {
       method: 'DELETE',
     });
 
@@ -304,7 +304,7 @@ export async function deleteProcess(id: string): Promise<{ success: boolean; err
  */
 export async function deleteProcesses(ids: string[]): Promise<{ success: boolean; deletedCount?: number; error?: string; __authError?: boolean }> {
   try {
-    const { response, error } = await serverFetch(`${process.env.API_URL}/v1/processes`, {
+    const { response, error } = await serverFetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/processes`, {
       method: 'DELETE',
       body: JSON.stringify({ ids: ids.map((id) => parseInt(id, 10)) }),
     });
@@ -335,7 +335,7 @@ export async function deleteProcesses(ids: string[]): Promise<{ success: boolean
  */
 export async function toggleProcessActive(id: string): Promise<{ success: boolean; data?: Process; error?: string; __authError?: boolean }> {
   try {
-    const { response, error } = await serverFetch(`${process.env.API_URL}/v1/processes/${id}/toggle`, {
+    const { response, error } = await serverFetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/processes/${id}/toggle`, {
       method: 'PATCH',
     });
 
@@ -370,7 +370,7 @@ export async function getProcessOptions(): Promise<{
   __authError?: boolean;
 }> {
   try {
-    const { response, error } = await serverFetch(`${process.env.API_URL}/v1/processes/options`, {
+    const { response, error } = await serverFetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/processes/options`, {
       method: 'GET',
       cache: 'no-store',
     });
@@ -416,7 +416,7 @@ export async function getProcessStats(): Promise<{
   __authError?: boolean;
 }> {
   try {
-    const { response, error } = await serverFetch(`${process.env.API_URL}/v1/processes/stats`, {
+    const { response, error } = await serverFetch(`${process.env.NEXT_PUBLIC_API_URL}/v1/processes/stats`, {
       method: 'GET',
       cache: 'no-store',
     });