Fantastic Four (credited onscreen as The Fantastic Four) is an American animated television series produced by Hanna-Barbera Productions and based on the Marvel Comics superhero team of the same name. The program, featuring character designs by Alex Toth, aired Saturday mornings on ABC from September 9, 1967, to September 21, 1968. It lasted for 20 episodes, with repeat episodes airing on ABC for three years until the network cancelled the program. It was also rerun as part of the continuing series Hanna–Barbera's World of Super Adventure.

The show was followed by another Fantastic Four cartoon produced by DePatie–Freleng Enterprises, The New Fantastic Four, in 1978.