Stretch Armstrong and the Flex Fighters is an American animated series produced by Hasbro Studios and distributed by Netflix. It is based on the 1970s action figure Stretch Armstrong. The Netflix series features a brand new superhero universe, new characters, new villains, and new lore. The series was developed by executive producers Kevin Burke, Victor Cook, and Chris "Doc" Wyatt.

Victor Cook also oversaw the series as supervising director, Burke and Wyatt as story editors.

Burke and Wyatt also wrote a tie-in comic book for IDW Publishing. The first season was released on Netflix on November 17, 2017. The second season was released on September 7, 2018.