diff --git a/src/Authentication/Common.Authentication/Models/AzureEnvironment.Methods.cs b/src/Authentication/Common.Authentication/Models/AzureEnvironment.Methods.cs
index 2ce9a685727a..500ec18fd24c 100644
--- a/src/Authentication/Common.Authentication/Models/AzureEnvironment.Methods.cs
+++ b/src/Authentication/Common.Authentication/Models/AzureEnvironment.Methods.cs
@@ -143,6 +143,32 @@ private string StorageFileEndpointFormat()
                         {AzureEnvironment.Endpoint.GraphEndpointResourceId, AzureEnvironmentConstants.USGovernmentGraphEndpoint}
                     }
                 }
+            },
+            {
+                EnvironmentName.AzureGermanCloud,
+                new AzureEnvironment
+                {
+                    Name = EnvironmentName.AzureGermanCloud,
+                    Endpoints = new Dictionary<AzureEnvironment.Endpoint, string>
+                    {
+                        { AzureEnvironment.Endpoint.PublishSettingsFileUrl, AzureEnvironmentConstants.GermanPublishSettingsFileUrl },
+                        { AzureEnvironment.Endpoint.ServiceManagement, AzureEnvironmentConstants.GermanServiceEndpoint },
+                        { AzureEnvironment.Endpoint.ResourceManager, AzureEnvironmentConstants.GermanResourceManagerEndpoint },
+                        { AzureEnvironment.Endpoint.ManagementPortalUrl, AzureEnvironmentConstants.GermanManagementPortalUrl },
+                        { AzureEnvironment.Endpoint.ActiveDirectory, AzureEnvironmentConstants.GermanActiveDirectoryServiceEndpoint },
+                        { AzureEnvironment.Endpoint.ActiveDirectoryServiceEndpointResourceId, AzureEnvironmentConstants.GermanServiceEndpoint },
+                        { AzureEnvironment.Endpoint.StorageEndpointSuffix, AzureEnvironmentConstants.GermanStorageEndpointSuffix },
+                        { AzureEnvironment.Endpoint.Gallery, AzureEnvironmentConstants.GermanGalleryEndpoint },
+                        { AzureEnvironment.Endpoint.SqlDatabaseDnsSuffix, AzureEnvironmentConstants.GermanSqlDatabaseDnsSuffix },
+                        { AzureEnvironment.Endpoint.Graph, AzureEnvironmentConstants.GermanGraphEndpoint },
+                        { AzureEnvironment.Endpoint.TrafficManagerDnsSuffix, AzureEnvironmentConstants.GermanTrafficManagerDnsSuffix},
+                        { AzureEnvironment.Endpoint.AzureKeyVaultDnsSuffix, AzureEnvironmentConstants.GermanKeyVaultDnsSuffix},
+                        { AzureEnvironment.Endpoint.AzureKeyVaultServiceEndpointResourceId, AzureEnvironmentConstants.GermanKeyVaultServiceEndpointResourceId},
+                        { AzureEnvironment.Endpoint.AzureDataLakeAnalyticsCatalogAndJobEndpointSuffix, null},
+                        { AzureEnvironment.Endpoint.AzureDataLakeStoreFileSystemEndpointSuffix, null},
+                        {AzureEnvironment.Endpoint.GraphEndpointResourceId, AzureEnvironmentConstants.GermanGraphEndpoint}
+                    }
+                }
             }
         };
 
@@ -330,6 +356,8 @@ public static class EnvironmentName
         public const string AzureChinaCloud = "AzureChinaCloud";
 
         public const string AzureUSGovernment = "AzureUSGovernment";
+
+        public const string AzureGermanCloud = "AzureGermanCloud";
     }
 
     public static class AzureEnvironmentConstants
@@ -340,72 +368,96 @@ public static class AzureEnvironmentConstants
 
         public const string USGovernmentServiceEndpoint = "https://management.core.usgovcloudapi.net/";
 
+    public const string GermanServiceEndpoint = "https://management.core.cloudapi.de/";
+
         public const string AzureResourceManagerEndpoint = "https://management.azure.com/";
 
         public const string ChinaResourceManagerEndpoint = "https://management.chinacloudapi.cn/";
 
         public const string USGovernmentResourceManagerEndpoint = "https://management.usgovcloudapi.net/";
 
+    public const string GermanResourceManagerEndpoint = "https://management.microsoftazure.de/";
+
         public const string GalleryEndpoint = "https://gallery.azure.com/";
 
         public const string ChinaGalleryEndpoint = "https://gallery.chinacloudapi.cn/";
 
         public const string USGovernmentGalleryEndpoint = "https://gallery.usgovcloudapi.net/";
 
+    public const string GermanGalleryEndpoint = "https://gallery.cloudapi.de/";
+
         public const string AzurePublishSettingsFileUrl = "http://go.microsoft.com/fwlink/?LinkID=301775";
 
         public const string ChinaPublishSettingsFileUrl = "http://go.microsoft.com/fwlink/?LinkID=301776";
 
         public const string USGovernmentPublishSettingsFileUrl = "https://manage.windowsazure.us/publishsettings/index";
 
+    public const string GermanPublishSettingsFileUrl = "https://manage.microsoftazure.de/publishsettings/index";
+
         public const string AzureManagementPortalUrl = "http://go.microsoft.com/fwlink/?LinkId=254433";
 
         public const string ChinaManagementPortalUrl = "http://go.microsoft.com/fwlink/?LinkId=301902";
 
         public const string USGovernmentManagementPortalUrl = "https://manage.windowsazure.us";
 
+    public const string GermanManagementPortalUrl = "http://portal.microsoftazure.de/";
+
         public const string AzureStorageEndpointSuffix = "core.windows.net";
 
         public const string ChinaStorageEndpointSuffix = "core.chinacloudapi.cn";
 
         public const string USGovernmentStorageEndpointSuffix = "core.usgovcloudapi.net";
 
+    public const string GermanStorageEndpointSuffix = "core.cloudapi.de";
+
         public const string AzureSqlDatabaseDnsSuffix = ".database.windows.net";
 
         public const string ChinaSqlDatabaseDnsSuffix = ".database.chinacloudapi.cn";
 
         public const string USGovernmentSqlDatabaseDnsSuffix = ".database.usgovcloudapi.net";
 
+    public const string GermanSqlDatabaseDnsSuffix = ".database.cloudapi.de";
+
         public const string AzureActiveDirectoryEndpoint = "https://login.microsoftonline.com/";
 
         public const string ChinaActiveDirectoryEndpoint = "https://login.chinacloudapi.cn/";
 
         public const string USGovernmentActiveDirectoryEndpoint = "https://login.microsoftonline.com/";
 
+    public const string GermanActiveDirectoryServiceEndpoint = "https://login.microsoftonline.de/";
+
         public const string AzureGraphEndpoint = "https://graph.windows.net/";
 
         public const string ChinaGraphEndpoint = "https://graph.chinacloudapi.cn/";
 
         public const string USGovernmentGraphEndpoint = "https://graph.windows.net/";
 
+    public const string GermanGraphEndpoint = "https://graph.cloudapi.de/";
+
         public const string AzureTrafficManagerDnsSuffix = "trafficmanager.net";
 
         public const string ChinaTrafficManagerDnsSuffix = "trafficmanager.cn";
 
+    public const string GermanTrafficManagerDnsSuffix = "azuretrafficmanager.de";
+
         public const string AzureKeyVaultDnsSuffix = "vault.azure.net";
 
         public const string ChinaKeyVaultDnsSuffix = "vault.azure.cn";
 
         public const string USGovernmentKeyVaultDnsSuffix = "vault.usgovcloudapi.net";
 
+    public const string GermanKeyVaultDnsSuffix = "vault.microsoftazure.de";
+
         public const string AzureKeyVaultServiceEndpointResourceId = "https://vault.azure.net";
 
         public const string ChinaKeyVaultServiceEndpointResourceId = "https://vault.azure.cn";
 
         public const string USGovernmentKeyVaultServiceEndpointResourceId = "https://vault.usgovcloudapi.net";
 
+    public const string GermanKeyVaultServiceEndpointResourceId = "https://vault.microsoftazure.de";
+
         public const string AzureDataLakeAnalyticsCatalogAndJobEndpointSuffix = "azuredatalakeanalytics.net";
 
         public const string AzureDataLakeStoreFileSystemEndpointSuffix = "azuredatalakestore.net";
-    }
+}
 }
diff --git a/src/ClientRuntime/Microsoft.Rest.ClientRuntime.Azure.Authentication/ActiveDirectoryServiceSettings.cs b/src/ClientRuntime/Microsoft.Rest.ClientRuntime.Azure.Authentication/ActiveDirectoryServiceSettings.cs
index 3fe363ef928c..82e93aeef6a3 100644
--- a/src/ClientRuntime/Microsoft.Rest.ClientRuntime.Azure.Authentication/ActiveDirectoryServiceSettings.cs
+++ b/src/ClientRuntime/Microsoft.Rest.ClientRuntime.Azure.Authentication/ActiveDirectoryServiceSettings.cs
@@ -16,7 +16,7 @@ public sealed class ActiveDirectoryServiceSettings
 
         private static readonly ActiveDirectoryServiceSettings AzureSettings = new ActiveDirectoryServiceSettings
         {
-            AuthenticationEndpoint= new Uri("https://login.windows.net/"), 
+            AuthenticationEndpoint= new Uri("https://login.microsoftonline.com/"), 
             TokenAudience = new Uri("https://management.core.windows.net/"),
             ValidateAuthority = true
         };
@@ -28,6 +28,20 @@ public sealed class ActiveDirectoryServiceSettings
             ValidateAuthority = true
         };
 
+        private static readonly ActiveDirectoryServiceSettings AzureUSGovernmentSettings = new ActiveDirectoryServiceSettings
+        {
+            AuthenticationEndpoint = new Uri("https://login.microsoftonline.com/"),
+            TokenAudience = new Uri("https://management.core.usgovcloudapi.net/"),
+            ValidateAuthority = true
+        };
+
+        private static readonly ActiveDirectoryServiceSettings AzureGermanCloudSettings = new ActiveDirectoryServiceSettings
+        {
+            AuthenticationEndpoint = new Uri("https://login.microsoftonline.de/"),
+            TokenAudience = new Uri("https://management.core.cloudapi.de/"),
+            ValidateAuthority = true
+        };
+
         /// <summary>
         /// Gets the serviceSettings for authentication with Azure
         /// </summary>
@@ -38,6 +52,16 @@ public sealed class ActiveDirectoryServiceSettings
         /// </summary>
         public static ActiveDirectoryServiceSettings AzureChina { get { return AzureChinaSettings; } }
 
+        /// <summary>
+        /// Gets the serviceSettings for authentication with Azure US Government
+        /// </summary>
+        public static ActiveDirectoryServiceSettings AzureUSGovernment { get { return AzureUSGovernmentSettings; } }
+
+        /// <summary>
+        /// Gets the serviceSettings for authentication with Azure Germany
+        /// </summary>
+        public static ActiveDirectoryServiceSettings AzureGermany { get { return AzureGermanCloudSettings; } }
+
         /// <summary>
         /// Gets or sets the ActiveDirectory Endpoint for the Azure Environment
         /// </summary>