Villains are some of our favorite characters. They allow the audience to escape from their own lives for a little while and take a walk on the wild side, and no one is better at that than funny villains. Whether it's someone like the Grandmaster in the MCU or Freddy Krueger, these funny movie villains are often more frightening than their more straight forward counterparts.
There are a lot of funny evil characters, and not all of them are supernatural or exist in a heightened genre film. Directors like Martin Scorsese and Quentin Tarantino love to use a funny villain in their films to accentuate the horrible things their characters are doing.
Some of these villains are funnier than the rest, but it's up to you to determine which one of them is the funniest.