Don't Tell the Wife is a 1937 American comedy film directed by Christy Cabanne using a screenplay by Nat Perrin adapted from the play, Once Over Lightly, written by George Holland.

The film stars Guy Kibbee, Una Merkel, and Lynne Overman, with Lucille Ball, William Demarest, and Academy Award winner Hattie McDaniel in supporting roles.

Produced by RKO Radio Pictures, it premiered in New York City on February 18, 1937, and was released nationwide on March 5.

Dorsey listens to Manning's plan, and agrees to head up the bogus investment company, having become bored with his suburban life.

In order to induce the wealthy to invest in their bogus scheme, they hire an unwitting accomplice as their head of their company, Malcolm Winthrop.

They singled out Kibbee's performance, and gave good marks to Sisk's production, Cabanne's direction and Wilde's cinematography.