diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -1206,6 +1206,7 @@
     'PhabricatorAuthValidateController' => 'applications/auth/controller/PhabricatorAuthValidateController.php',
     'PhabricatorAuthenticationConfigOptions' => 'applications/config/option/PhabricatorAuthenticationConfigOptions.php',
     'PhabricatorAutoEventListener' => 'infrastructure/events/PhabricatorAutoEventListener.php',
+    'PhabricatorAzureAuthProvider' => 'applications/auth/provider/PhabricatorAzureAuthProvider.php',
     'PhabricatorBarePageExample' => 'applications/uiexample/examples/PhabricatorBarePageExample.php',
     'PhabricatorBarePageView' => 'view/page/PhabricatorBarePageView.php',
     'PhabricatorBaseEnglishTranslation' => 'infrastructure/internationalization/translation/PhabricatorBaseEnglishTranslation.php',
@@ -4006,6 +4007,7 @@
     'PhabricatorAuthValidateController' => 'PhabricatorAuthController',
     'PhabricatorAuthenticationConfigOptions' => 'PhabricatorApplicationConfigOptions',
     'PhabricatorAutoEventListener' => 'PhabricatorEventListener',
+    'PhabricatorAzureAuthProvider' => 'PhabricatorOAuth2AuthProvider',
     'PhabricatorBarePageExample' => 'PhabricatorUIExample',
     'PhabricatorBarePageView' => 'AphrontPageView',
     'PhabricatorBaseEnglishTranslation' => 'PhabricatorTranslation',
diff --git a/src/applications/auth/provider/PhabricatorAzureAuthProvider.php b/src/applications/auth/provider/PhabricatorAzureAuthProvider.php
new file mode 100644
--- /dev/null
+++ b/src/applications/auth/provider/PhabricatorAzureAuthProvider.php
@@ -0,0 +1,37 @@
+<?php
+
+
+final class PhabricatorAzureAuthProvider
+    extends PhabricatorOAuth2AuthProvider {
+
+  public function getProviderName() {
+    return pht('Azure Active Directory');
+  }
+
+  public function getProviderConfigurationHelp() {
+    $login_uri = $this->getLoginURI();
+
+    return pht(
+      "To configure Azure AD OAuth, create a new application here:".
+      "\n\n".
+      "https://manage.windowsazure.com".
+      "\n\n".
+      "When creating your application, use these settings:".
+      "\n\n".
+      "  - **Redirect URI:** Set this to: `%s`".
+      "\n\n".
+      "After completing configuration, copy the **Client ID** and ".
+      "**Client Secret** to the fields above. (You may need to generate the ".
+      "client secret by clicking 'Select duration' under 'keys' first.)",
+      $login_uri);
+  }
+
+  protected function newOAuthAdapter() {
+    return new PhutilAzureAuthAdapter();
+  }
+
+  protected function getLoginIcon() {
+    return 'Azure';
+  }
+
+}