diff --git a/Storage/tests/System/StorageTestCase.php b/Storage/tests/System/StorageTestCase.php
index dd3b69db48f7..db13a7495ee6 100644
--- a/Storage/tests/System/StorageTestCase.php
+++ b/Storage/tests/System/StorageTestCase.php
@@ -35,6 +35,7 @@ class StorageTestCase extends SystemTestCase
     protected static $bucket;
     protected static $client;
     protected static $unauthenticatedClient;
+    protected static $universeDomainClient;
     protected static $pubsubClient;
     protected static $object;
     protected static $mainBucketName;
@@ -53,6 +54,11 @@ public static function setUpTestFixtures(): void
         self::$unauthenticatedClient = new StorageClient([
             'credentialsFetcher' => new AnonymousCredentials()
         ]);
+        self::$universeDomainClient = new StorageClient([
+            'keyFilePath' => getenv('TEST_UNIVERSE_DOMAIN_CREDENTIAL'),
+            'projectId' => getenv('TEST_UNIVERSE_PROJECT_ID'),
+            'universeDomain' => getenv('TEST_UNIVERSE_DOMAIN')
+        ]);
         self::$pubsubClient = new PubSubClient($config);
 
         self::$mainBucketName = getenv('BUCKET') ?: uniqid(self::TESTING_PREFIX);
diff --git a/Storage/tests/System/UniverseDomainTest.php b/Storage/tests/System/UniverseDomainTest.php
new file mode 100644
index 000000000000..6ec8fbdcca24
--- /dev/null
+++ b/Storage/tests/System/UniverseDomainTest.php
@@ -0,0 +1,68 @@
+<?php
+/**
+ * Copyright 2024 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+ namespace Google\Cloud\Storage\Tests\System;
+ use Google\Cloud\Storage\Bucket;
+
+ class UniverseDomainTest extends StorageTestCase
+ {
+    private static $universeDomainBucket;
+    private static $bucketName;
+    /**
+     *  Test creating a bucket with universe domain credentials
+     */
+    public function testCreateBucketWithUniverseDomain()
+    {
+        self::$bucketName = uniqid(self::TESTING_PREFIX);
+        self::$universeDomainBucket = self::createBucket(
+            self::$universeDomainClient,
+            self::$bucketName,
+            [
+                'location' => getenv('TEST_UNIVERSE_LOCATION')
+            ]
+        );
+        $this->assertEquals(self::$bucketName, self::$universeDomainBucket->info()['name']);
+    }
+
+    /**
+     *  Test uploading and retrieving objects to a bucket using universe domain credentials.
+     */
+    public function testListsObjectsWithUniverseDomain()
+    {
+        $foundObjects = [];
+        $objectsToCreate = [
+            uniqid(self::TESTING_PREFIX),
+            uniqid(self::TESTING_PREFIX)
+        ];
+
+        foreach ($objectsToCreate as $objectToCreate) {
+            self::$universeDomainBucket->upload('data', ['name' => $objectToCreate]);
+        }
+
+        $objects = self::$universeDomainBucket->objects(['prefix' => self::TESTING_PREFIX]);
+
+        foreach ($objects as $object) {
+            foreach ($objectsToCreate as $key => $objectToCreate) {
+                if ($object->name() === $objectToCreate) {
+                    $foundObjects[$key] = $object->name();
+                }
+            }
+        }
+        $this->assertEquals($objectsToCreate, $foundObjects);
+    }
+ }
+ ?>