Riverboat Rhythm is a 1946 American comedy film directed by Leslie Goodwins and written by Charles E. Roberts.

The film stars Leon Errol, Glenn Vernon, Walter Catlett, Joan Newton, Marc Cramer, and Jonathan Hale.

[1][2][3] Matt Lindsay is the owner of a broken-down showboat, perpetually one small step ahead of his creditors and the law.

At one point, he disguises himself as Col. Witherspoon, a con artist he'd met earlier, only to find himself in the middle of a blood feud with Col. Beeler, who aims to settle things once and for all—with a pistol.

Riverboat Rhythm was originally conceived in September 1944 as a vehicle for its juvenile musical-comedy team of Glenn Vernon and Marcy McGuire.