The Young in Heart is a 1938 American comedy film produced by David O. Selznick, directed by Richard Wallace, and starring Janet Gaynor, Douglas Fairbanks Jr., and Paulette Goddard. The supporting cast features Roland Young and Billie Burke. This was Richard Carlson's feature film debut, preceding The Duke of West Point by a month.

The screenplay by Paul Osborn was adapted by Charles Bennett from the serialized novel, The Gay Banditti by I. A. R. Wylie, as appearing in The Saturday Evening Post from February 26 to March 26, 1938.