MVC is an architectural pattern describing the organization of an application. As such, it’s not a precise term that always lends itself to a strict yes/no answer, and, the structure described by the term MVC does differ between whether you’re talking about a web app or a desktop app.
All the above is to say that the answer is either yes or no, depending upon which definition of MVC you choose to use and how you have actually architected your application being built within Django.
For the official take on this, see the Django FAQ.