Magento2 get admin URL Magento2 get admin url.If   want to get admin URL to Magento 2 then you can try below Solution In order to get admin  URL ,you need to inject the  Magento_Backend ‘s helper class Magento\Backend\Helper\Data  to  __construct() function. /** * @var Magento\Backend\Helper\Data */ protected $HelperBackend; public function __construct( .... \Magento\Backend\Helper\Data $HelperBackend .... ) { ... $this->HelperBackend = $HelperBackend; ... } /** * * @param \Magento\Framework\Event\Observer $observer * @return void */ public function getAdminUrl() { echo $this->HelperBackend->getHomePageUrl(); }   Here you will get  Magento 2 get admin url from getAdminUrl() which basically return Magento_Backend module’s  getHomePageUrl() function, This function also given admin home page url.