The Quantel Paintbox was a dedicated computer graphics workstation for composition of broadcast television video and graphics. Produced by the British production equipment manufacturer Quantel, its design emphasized the studio workflow efficiency required for live news production.

Quantel was a company based in the United Kingdom and founded in 1973 that designed and manufactured digital production equipment for the broadcast television, video production and motion picture industries. It was headquartered in Newbury, Berkshire. The name Quantel came from Quantised Television, in reference to the process of converting a television picture into a digital signal.