No, Harry Potter is not a Christmas movie. It's a fantasy adventure series based on the novels by J.K. Rowling. However, there are some scenes that take place during Christmas and have a holiday theme, such as the Yule Ball in "Harry Potter and the Goblet of Fire" and the Weasley family's Christmas celebration in "Harry Potter and the Prisoner of Azkaban". So while it's not a traditional Christmas movie, it does incorporate some festive elements.