Ronald Mann (born June 13, 1958), credited professionally as Ron Mann, is a Canadian documentary film director. His work includes the films Imagine the Sound (1981); Comic Book Confidential (1988); Grass (1999) and Go Further (2003), both of which feature Woody Harrelson; In the Wake of the Flood (2010), which features author Margaret Atwood; and Altman (2014), about the life and career of film director Robert Altman. ()