Fantomcat is a British animated series produced by Cosgrove Hall Films. It was first broadcast between 7 September 1995 and 18 December 1996, and was animated by Alfonso Productions, a Spanish animation studio also responsible for animating and bringing Cosgrove Hall's shows Count Duckula, Victor and Hugo: Bunglers in Crime, Avenger Penguins, Sooty's Amazing Adventures and The Foxbusters to life, Milimetros, another Spanish animation studio, and in-house by Cosgrove Hall themselves. It aired largely on Children's ITV. The series also had a run on Pop from 2003 to 2005.

It was the first Cosgrove Hall cartoon to be animated with a process called Animo, wherein the animation drawings were scanned and then digitally coloured on computers. The first season was produced and directed by Ben Turner, while the second and final season was produced and directed by its creator, Andy Roper.