Robert Redford as Halsy Knox in Little Fauss and bug Halsy

Little Fauss and Big Halsy is a 1970 American comedy-drama film directed by Sidney J. Furie, starring Robert Redford and Michael J. Pollard, also featuring Lauren Hutton, Noah Beery, Jr. and Lucille Benson.

The film concerns the exploits of two motorcycle riders. It is one of Redford's relatively unsuccessful films and is therefore less known than his other works. Johnny Cash contributed the title song and other parts of the soundtrack, which also features both Carl Perkins and Bob Dylan. The title song, "The Ballad of Little Fauss and Big Halsy", written by Perkins, was nominated for a Golden Globe Award for Best Original Song.

The main characters are the inept, unsuspecting Little Fauss (Pollard), and the opportunistic, womanizing Halsy Knox (Redford). Hutton played the supporting role of Rita Nebraska, a role originally offered to Grace Slick.