William Barratt is an American cinematographer and producer best known for his work on the films of the Adam Green.

He went to college at the University of Massachusetts and later attended the International Film and Television Workshop.

Barratt was nominated for the 2014 BloodGuts UK Horror award for Digging Up the Marrow.

He and Green would make their first movie, Coffee & Donuts, the same year using borrowed camera equipment from their day job.

In addition to every one of Green's features, Barratt has also completed twenty five shorts with ArieScope.