diff --git a/src/Illuminate/Http/Client/PendingRequest.php b/src/Illuminate/Http/Client/PendingRequest.php
index 120329743ff8..66fc30286b29 100644
--- a/src/Illuminate/Http/Client/PendingRequest.php
+++ b/src/Illuminate/Http/Client/PendingRequest.php
@@ -471,6 +471,20 @@ public function withDigestAuth($username, $password)
         });
     }
 
+    /**
+     * Specify the NTLM authentication username and password for the request.
+     *
+     * @param  string  $username
+     * @param  string  $password
+     * @return $this
+     */
+    public function withNtlmAuth($username, $password)
+    {
+        return tap($this, function () use ($username, $password) {
+            $this->options['auth'] = [$username, $password, 'ntlm'];
+        });
+    }
+
     /**
      * Specify an authorization token for the request.
      *
diff --git a/src/Illuminate/Support/Facades/Http.php b/src/Illuminate/Support/Facades/Http.php
index 1ff8a0724d1d..9eeaa7990dc4 100644
--- a/src/Illuminate/Support/Facades/Http.php
+++ b/src/Illuminate/Support/Facades/Http.php
@@ -49,6 +49,7 @@
  * @method static \Illuminate\Http\Client\PendingRequest replaceHeaders(array $headers)
  * @method static \Illuminate\Http\Client\PendingRequest withBasicAuth(string $username, string $password)
  * @method static \Illuminate\Http\Client\PendingRequest withDigestAuth(string $username, string $password)
+ * @method static \Illuminate\Http\Client\PendingRequest withNtlmAuth(string $username, string $password)
  * @method static \Illuminate\Http\Client\PendingRequest withToken(string $token, string $type = 'Bearer')
  * @method static \Illuminate\Http\Client\PendingRequest withUserAgent(string|bool $userAgent)
  * @method static \Illuminate\Http\Client\PendingRequest withUrlParameters(array $parameters = [])