Yes, you can change the web address for your Facebook page by logging into your account on a computer and then changing the page's username. If your page is in the New Pages experience, you can click on its profile picture and then go to Settings & privacy to click Settings. Choose the Edit option next to Username and enter a new username. If it is available, you can click Save Changes. This will change the web address for your Facebook page. To change a page's web address or username in the Classic Pages experience, you need to visit it and click Edit Page Info in your Page's left menu. After this, click the current page username and provide a new one. If your entered username complies with the guidelines of the Facebook username and is available, then a green tick symbol will appear.