Jason Burx Reitman (born October 19, 1977) is a film director, screenwriter, producer (Film producer) and actor, best known for directing the films Thank You for Smoking (2006), Juno (Juno (film)) (2007), and Up in the Air (Up in the Air (film)) (2009). As of February 2, 2010, he has received four Academy Award nominations, two of which are for Best Director (Academy Award for Best Director).

Reitman is a dual citizen of the United States and Canada.