Yes, it is possible to host a multi-page React application on GitHub Pages. GitHub Pages can serve static files for any type of web application, including a multi-page application. However, you need to ensure that the routing for your application is set up correctly, as GitHub Pages uses the URL structure to serve files. This typically means you will have to manage your routes either by using hash-based routing (using HashRouter) or configure your application to handle routing properly in a way that aligns with how GitHub Pages serves the files. Make sure that your build process generates a unique HTML file for each route in your MPA.