diff --git a/spec/AuthenticationAdapters.spec.js b/spec/AuthenticationAdapters.spec.js
index 6cc603a29d..f0cdfa2f92 100644
--- a/spec/AuthenticationAdapters.spec.js
+++ b/spec/AuthenticationAdapters.spec.js
@@ -15,6 +15,7 @@ const responses = {
   weibo: { uid: 'userId' },
   qq: 'callback( {"openid":"userId"} );', // yes it's like that, run eval in the client :P
   phantauth: { sub: 'userId' },
+  microsoft: { id: 'userId', mail: 'userMail' },
 };
 
 describe('AuthenticationProviders', function() {
@@ -37,7 +38,8 @@ describe('AuthenticationProviders', function() {
     'wechat',
     'weibo',
     'phantauth',
-  ].map(function(providerName) {
+    'microsoft',
+  ].map(function (providerName) {
     it('Should validate structure of ' + providerName, done => {
       const provider = require('../lib/Adapters/Auth/' + providerName);
       jequal(typeof provider.validateAuthData, 'function');
@@ -1194,3 +1196,17 @@ describe('phant auth adapter', () => {
     }
   });
 });
+
+describe('microsoft graph auth adapter', () => {
+  const microsoft = require('../lib/Adapters/Auth/microsoft');
+  const httpsRequest = require('../lib/Adapters/Auth/httpsRequest');
+
+  it('should use access_token for validation is passed and responds with id and mail', async () => {
+    spyOn(httpsRequest, 'get').and.callFake(() => {
+      return Promise.resolve({ id: 'userId', mail: 'userMail' });
+    });
+    await microsoft.validateAuthData(
+      { id: 'userId', access_token: 'the_token' }
+    );
+  });
+});
diff --git a/spec/MicrosoftAuth.spec.js b/spec/MicrosoftAuth.spec.js
new file mode 100644
index 0000000000..71d14e6bd0
--- /dev/null
+++ b/spec/MicrosoftAuth.spec.js
@@ -0,0 +1,18 @@
+const microsoft = require('../lib/Adapters/Auth/microsoft');
+
+describe('Microsoft Auth', () => {
+  it('should fail to validate Microsoft Graph auth with bad token', done => {
+    const authData = {
+      id: 'fake-id',
+      mail: 'fake@mail.com',
+      access_token: 'very.long.bad.token',
+    };
+    microsoft.validateAuthData(authData).then(done.fail, err => {
+      expect(err.code).toBe(101);
+      expect(err.message).toBe(
+        'Microsoft Graph auth is invalid for this user.'
+      );
+      done();
+    });
+  });
+});
diff --git a/src/Adapters/Auth/index.js b/src/Adapters/Auth/index.js
index 9e4156624e..fa68d5ec50 100755
--- a/src/Adapters/Auth/index.js
+++ b/src/Adapters/Auth/index.js
@@ -20,6 +20,7 @@ const wechat = require('./wechat');
 const weibo = require('./weibo');
 const oauth2 = require('./oauth2');
 const phantauth = require('./phantauth');
+const microsoft = require('./microsoft');
 
 const anonymous = {
   validateAuthData: () => {
@@ -51,6 +52,7 @@ const providers = {
   wechat,
   weibo,
   phantauth,
+  microsoft,
 };
 
 function authDataValidator(adapter, appIds, options) {
diff --git a/src/Adapters/Auth/microsoft.js b/src/Adapters/Auth/microsoft.js
new file mode 100644
index 0000000000..1574045528
--- /dev/null
+++ b/src/Adapters/Auth/microsoft.js
@@ -0,0 +1,39 @@
+// Helper functions for accessing the microsoft graph API.
+var Parse = require('parse/node').Parse;
+const httpsRequest = require('./httpsRequest');
+
+// Returns a promise that fulfills if this user mail is valid.
+function validateAuthData(authData) {
+  return request('me', authData.access_token).then(
+    response => {
+      if (response && response.id && response.id == authData.id) {
+        return;
+      }
+      throw new Parse.Error(
+        Parse.Error.OBJECT_NOT_FOUND,
+        'Microsoft Graph auth is invalid for this user.'
+      );
+    }
+  );
+}
+
+// Returns a promise that fulfills if this app id is valid.
+function validateAppId() {
+  return Promise.resolve();
+}
+
+// A promisey wrapper for api requests
+function request(path, access_token) {
+  return httpsRequest.get({
+    host: 'graph.microsoft.com',
+    path: '/v1.0/' + path,
+    headers: {
+      Authorization: 'Bearer ' + access_token,
+    },
+  });
+}
+
+module.exports = {
+  validateAppId: validateAppId,
+  validateAuthData: validateAuthData,
+};