Hook, Line and Sinker is a 1930 American pre-Code slapstick comedy directed by Edward F. Cline from a screenplay by Ralph Spence and Tim Whelan.

Two fast-talking insurance salesmen — Wilbur Boswell and J. Addington Ganzy — help penniless socialite Mary Marsh to turn a dilapidated hotel, which was willed to her, into a thriving success.

They soon run into trouble, however, in the form of two sets of rival gangsters who want to break into the hotel safe; also, Mary's mother, Rebecca Marsh, wants her to marry wealthy lawyer John Blackwell, although Mary has fallen in love with Wilbur.

(Cast list as per AFI database)[2] The film opened at the Mayfair Theatre in New York City on December 23, 1930.

[5][6] The film made a profit of $225,000,[4] and would be one of the top two money earners for RKO Radio Pictures in 1930.