To register a model with Django's admin interface, we make changes to our apps admin.py file. We have to open the admin.py file in the app folder in which our models are. For example, if we have an app named ‘polls’ and we wish to register a model named ‘Question’, then we need to open ‘polls/admin.py’ and import the Question model and write: admin.site.register(Question). This will register our Question model with the admin site.