Outlaw Trail: The Treasure of Butch Cassidy is a 2006 American adventure film, produced and directed by Ryan Little. It is loosely based on legends arising from the fate of real-life Western outlaw Butch Cassidy, the alias of Robert LeRoy Parker, whose gang robbed trains and banks in the 1890s. Cassidy fled to South America in 1901, where he is believed to have died in 1908.

The film continues the Butch Cassidy saga beyond the ending of the 1969 Robert Redford–Paul Newman hit film, Butch Cassidy and the Sundance Kid, in 1908. The protagonist, Cassidy's teenage grand-nephew, Roy Parker, sets out in 1951 to find the treasure he believes Cassidy left behind in Utah. Overcoming his unforgiving grandfather's opposition, Roy and friends are involved in several chase scenes, pursued by criminals.

The film was produced on location in Utah by GO Films from a screenplay by David Pliler. The music score was by Jay Bateman. The film stars Ryan Kelley, Arielle Kebbel, Dan Byrd, and Brent Weber, and features Bruce McGill and James Gammon. The film was released in North America in 2006 and is available on DVD.