Night of the Big Heat is a 1967 British sci-fi horror film released by Planet Film Productions, based on a 1959 novel of the same name by John Lymington. It was released in the United States in 1971 under the title Island of the Burning Damned and was double-billed with All Monsters Attack. It was later broadcast on US television under the slightly censored title Island of the Burning Doomed.