You'll Never Get Rich is a 1941 American musical comedy film with a wartime theme directed by Sidney Lanfield and starring Fred Astaire and Rita Hayworth, with music and lyrics by Cole Porter. The title stems from an old Army song that includes the lyrics "You'll never get rich / By digging a ditch / You're in the Army now!".

This was Hayworth's first starring role in a big-budgeted film from her home studio, Columbia Pictures. While the film was in production, Life magazine put her on its cover, and featured a photo of Hayworth kneeling on a bed in a nightgown, which soon became one of the most widely distributed pin-ups of all time. Hayworth cooperated enthusiastically with Astaire's intense rehearsal habits, and was later to remark, "I guess the only jewels in my life are the pictures I made with Fred Astaire". The picture was very successful at the box office, turning Hayworth into a major star, and provided a welcome boost to Astaire, who felt his career had flagged since he had parted ways with Ginger Rogers.

One of the film's songs, "Since I Kissed My Baby Goodbye", was nominated for an Academy Award for Best Original Song.