Horror films and comedy films are some of the most beloved films(despite not always being well received critically). On several occasions the two have intertwined to create many great spoofs and satires of the horror genre. Here's my list of favorite horror comedies.
Wes Craven's masterpiece film perfectly combined humor with genuine terror. It was a smart, well-crafted satire of the genre that made Craven a legend. Adding to it's already impressive comedic intelligence is the self-referential humor, focusing on a group of kids obsessed with horror films so as to allow them to poke fun at the cliches of those flicks, as well as actually having a movie of the Scream within the Scream universe.
4. Buffy The Vampire Slayer
At this moment there are potentially a lot of angry Buffy fans, ready to chew my head off for including this because the film didn't follow Whedon's plan. This is true, and many may also point out that there is an interview with the man himself from the nineties stating his extreme distaste for it. However, he has sense said that he does enjoy the film and just doesn't consider it his, especially with how Donald Sutherland played the watcher. Buffy is one of my favorite TV series, but if you watch the film as something separate, then you'll realize it's a great piece of camp horror. Not to mention that you get to see Paul Rubens die three times.
3. Young Frankenstein
Okay, so let's get this out of the way: I love this movie, but no it's not my number one. Gene Wilder is hilarious as always in this early seventies farce of creature features. It's rich with pithy one-liners and funny situation comedy. If you haven't watched it, do yourself a favor and go watch it. You won't be disappointed.
2. Army of Darkness
The third installment in the Evil Dead franchise trades the darker and more bloody atmosphere of its predecessors for an all out comedy-horror-fantasy extravaganza. And it is glorious! Non-stop laughs and goofiness from beginning to end, and Bruce Campbell being, well, Bruce Campbell. Low budget, campy, and silly in all the right places. This is one for the Necronomicon.
Ah, an early work of Tim Burton. Weirdness, darkness, and silliness at every turn. Michael Keaton delivers one of the most memorable performances of his career here, alongside Geena Davis, Alec Baldwin, Winona Ryder, and Katherine O'Hara. One of the films major strong suits is the strange but effective practical effects, which aid it's surrealistic approach to the genre.
Honorable mentions: Shaun of the Dead, Warm Bodies, Zombieland, Abbot and Costello Meet Frankenstein, Ghostbusters, and Lost Skeleton of Cadavra.