The Big Knights is a British animated television series. It was created by Neville Astley and Mark Baker through their studio The Big Knights Ltd., in co-production with BBC Worldwide and in association with BBC Bristol. It was first broadcast on BBC Two over the Christmas season of 1999–2000. It was the first TV series to be digitally animated using CelAction 2D, while the first release of the software was still under development. It is mixed with cutout animation, traditional animation, and flash animation.

The stories tell the adventures of the two Big Knights, Sir Boris and Sir Morris, who are incredibly strong and brave, but are also incredibly dim-witted. They solve crises, usually of their own creation, but cause great destruction and mayhem in the process.

In 2015, a theatrical compilation film version was released. It was edited from seven remastered episodes.