diff --git a/app/Http/Controllers/TenantController.php b/app/Http/Controllers/TenantController.php
index b437a240..3c23bfdd 100644
--- a/app/Http/Controllers/TenantController.php
+++ b/app/Http/Controllers/TenantController.php
@@ -56,7 +56,11 @@ public function switch(Request $request)
         $tenantId = $request->input('tenant_id');
 
         if ($tenantId === 'all') {
-            $request->session()->forget('selected_tenant_id');
+            // "전체 보기" 대신 사용자의 HQ 테넌트로 설정
+            $hqTenant = auth()->user()->getHQTenant();
+            if ($hqTenant) {
+                $request->session()->put('selected_tenant_id', $hqTenant->id);
+            }
         } else {
             $request->session()->put('selected_tenant_id', $tenantId);
         }
diff --git a/app/Providers/ViewServiceProvider.php b/app/Providers/ViewServiceProvider.php
index 6ab63f0f..2cdd2767 100644
--- a/app/Providers/ViewServiceProvider.php
+++ b/app/Providers/ViewServiceProvider.php
@@ -25,6 +25,14 @@ public function boot(): void
         // 모든 뷰에 테넌트 목록 공유 (전역용)
         View::composer('*', function ($view) {
             if (auth()->check()) {
+                // 테넌트가 선택되지 않은 경우 자동으로 HQ 테넌트 설정
+                if (!session('selected_tenant_id')) {
+                    $hqTenant = auth()->user()->getHQTenant();
+                    if ($hqTenant) {
+                        session(['selected_tenant_id' => $hqTenant->id]);
+                    }
+                }
+
                 $globalTenants = Tenant::active()
                     ->orderBy('company_name')
                     ->get(['id', 'company_name', 'code']);
diff --git a/resources/views/partials/header.blade.php b/resources/views/partials/header.blade.php
index a17c6a8c..1eff6955 100644
--- a/resources/views/partials/header.blade.php
+++ b/resources/views/partials/header.blade.php
@@ -17,28 +17,17 @@ class="p-2 text-gray-600 hover:text-gray-900 hover:bg-gray-100 rounded-lg transi
         <!-- 모바일 로고 + 테넌트 뱃지 (lg 미만에서만 표시) -->
         <div class="flex items-center gap-2 lg:hidden">
             <span class="text-lg font-bold text-gray-900">{{ config('app.name') }}</span>
-            @if(session('selected_tenant_id'))
-                @php
-                    $mobileTenant = $globalTenants->firstWhere('id', session('selected_tenant_id'));
-                @endphp
-                @if($mobileTenant)
-                    <button
-                        type="button"
-                        onclick="openMobileSidebar()"
-                        class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-primary/10 text-primary"
-                        title="테넌트 변경"
-                    >
-                        {{ Str::limit($mobileTenant->company_name, 8) }}
-                    </button>
-                @endif
-            @else
+            @php
+                $mobileTenant = $globalTenants->firstWhere('id', session('selected_tenant_id'));
+            @endphp
+            @if($mobileTenant)
                 <button
                     type="button"
                     onclick="openMobileSidebar()"
-                    class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-gray-100 text-gray-600"
-                    title="테넌트 선택"
+                    class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-primary/10 text-primary"
+                    title="테넌트 변경"
                 >
-                    전체
+                    {{ Str::limit($mobileTenant->company_name, 8) }}
                 </button>
             @endif
         </div>
@@ -59,12 +48,6 @@ class="inline-flex items-center px-2 py-0.5 rounded text-xs font-medium bg-gray-
                 onchange="document.getElementById('tenant-switch-form').submit()"
                 class="border-gray-300 rounded-lg text-sm focus:ring-primary focus:border-primary min-w-[200px]"
             >
-                <option value="all" {{ session('selected_tenant_id') === null ? 'selected' : '' }}>
-                    전체 보기
-                </option>
-                @if($globalTenants->isNotEmpty())
-                    <option disabled>─────────</option>
-                @endif
                 @foreach($globalTenants as $tenant)
                     <option value="{{ $tenant->id }}" {{ session('selected_tenant_id') == $tenant->id ? 'selected' : '' }}>
                         {{ $tenant->company_name }}
@@ -74,8 +57,7 @@ class="border-gray-300 rounded-lg text-sm focus:ring-primary focus:border-primar
         </form>
 
         <!-- 현재 테넌트 정보 (데스크톱에서만 표시) -->
-        @if(session('selected_tenant_id'))
-            @php
+        @php
                 $currentTenant = $globalTenants->firstWhere('id', session('selected_tenant_id'));
             @endphp
             @if($currentTenant)
@@ -90,9 +72,6 @@ class="border-gray-300 rounded-lg text-sm focus:ring-primary focus:border-primar
                     {{ $currentTenant->company_name }}
                 </span>
             @endif
-        @else
-            <span class="hidden lg:inline text-xs text-gray-500">전체</span>
-        @endif
     </div>
 
     <!-- Right Side Actions -->
diff --git a/resources/views/partials/sidebar.blade.php b/resources/views/partials/sidebar.blade.php
index e8455733..1eb79133 100644
--- a/resources/views/partials/sidebar.blade.php
+++ b/resources/views/partials/sidebar.blade.php
@@ -90,12 +90,6 @@ class="absolute right-2 top-1/2 -translate-y-1/2 p-0.5 text-gray-400 hover:text-
                     onchange="document.getElementById('mobile-tenant-switch-form').submit()"
                     class="w-full border-gray-300 rounded-lg text-sm focus:ring-primary focus:border-primary"
                 >
-                    <option value="all" {{ session('selected_tenant_id') === null ? 'selected' : '' }}>
-                        전체 보기
-                    </option>
-                    @if($globalTenants->isNotEmpty())
-                        <option disabled>─────────</option>
-                    @endif
                     @foreach($globalTenants as $tenant)
                         <option value="{{ $tenant->id }}" {{ session('selected_tenant_id') == $tenant->id ? 'selected' : '' }}>
                             {{ $tenant->company_name }}