S.J. Clarkson is a British film and television director.

Her credits include the series Doctors, Casualty, EastEnders, Footballers' Wives, Life on Mars, the American series Heroes, House, Dexter and Ugly Betty. In 2008, she co-created the British series Mistresses. In 2010, she directed the film Toast, starring Freddie Highmore and Helena Bonham Carter.