Sean Durkin (born December 9, 1981) is an American film director. He won the Dramatic Directing Award at the 2011 Sundance Film Festival for Martha Marcy May Marlene. His short film, Mary Last Seen, on the same theme as Martha, won the award for best short film at the 2010 Cannes Film Festival Directors' Fortnight. In 2013 Durkin directed the Channel 4 drama series Southcliffe starring Sean Harris and Rory Kinnear.