John Mathieson CAL, BSC is an English cinematographer and commercial director. He is one of a group of filmmakers who emerged from the music video industry of the late 1980s and 1990s. He is a frequent collaborator with director Ridley Scott, acting as director of photography on most of his films beginning with Gladiator (2000), for which he won a BAFTA Award and was nominated for an Academy Award for Best Cinematography. He has worked with directors like Joel Schumacher, Rowan Joffé, Matthew Vaughn, Guy Ritchie, James Mangold, and Rob Letterman.

Gladiator is a 2000 historical epic film directed by Ridley Scott and written by David Franzoni, John Logan, and William Nicholson. It stars Russell Crowe, Joaquin Phoenix, Connie Nielsen, Tomas Arana, Ralf Möller, Oliver Reed, Djimon Hounsou, Derek Jacobi, John Shrapnel, Richard Harris, and Tommy Flanagan.