Frankenstein Jr. and The Impossibles is an American animated television series produced by Hanna-Barbera Productions.

[2] The program contained two segments, which each served as a middle ground between Hanna-Barbera's traditional early output and its superhero-based late-1960s cartoons.

The show was one of several that were the target of complaints about violence in children's television in the late 1960s, and was pulled from reruns in 1968 (its initial run had already ended the previous year).

The Frankenstein Jr. segments returned to television in the 1976 series Space Ghost and Frankenstein Jr., which aired on NBC from November 27, 1976 to September 3, 1977, replacing the canceled Big John, Little John.

On April 26, 2011, Warner Home Video (via the Warner Archive Collection) released Frankenstein Jr. and The Impossibles: The Complete Series on DVD in region 1 as part of their Hanna–Barbera Classics Collection.