Alien Dead is an American horror film directed by Fred Olen Ray. Ray co-wrote the script with Martin Nicholas. The film involves a meteor hitting a houseboat, which causes the people on board to become zombies who eat alligators and eventually people.

The film was one of the last films featuring actor Buster Crabbe among a cast of unknowns. It was filmed in 1980 and released to home video in 1985. Reviews from Variety, Kim Newman and other retrospective horror guides have been negative, noting low budget and bad acting.

A meteor strikes a houseboat in the swamps near a southern town populated by Yankees with fake accents. The people on the houseboat become zombies who feed on the alligators in the swamp. Once they run out of alligators, they start going for the citizens. A local scientist tries to figure out what's happening to people once they start disappearing.