Hanna-Barbera Studios Europe Ltd. (also known as Great Marlborough Productions[1]), formerly Cartoon Network Development Studio Europe and Cartoon Network Studios Europe, is a British animation studio headquartered in London, England, and owned by the UK division of Warner Bros. International Television Production, a subsidiary of the Warner Bros. Television Group, ultimately owned by Warner Bros.

It is the EMEA arm of Cartoon Network Studios.

[5] The Hanna-Barbera name had previously been revived on certain Warner Bros.

Animation productions based on the classic franchises, including the fifth through thirteenth Scooby-Doo direct-to-video animated films, The Jetsons & WWE: Robo-WrestleMania!

The first projects greenlit under the studio's new name were a film and sequel series based on The Amazing World of Gumball.