Lady Luck is a 1946 American comedy film directed by Edwin L. Marin and starring Robert Young, Barbara Hale and Frank Morgan.

The picture tells the story of a professional gambler who falls in love with a woman who hates gambling and tries to reform him.

Larry falls for Mary, however, woos and weds her, then takes her for a Las Vegas honeymoon without revealing his real profession.

Larry returns to Beverly Hills, where he finds Gramps running a bookie operation out of the book store.

They go back to Vegas and have everything riding on one last game of poker, which Gramps loses deliberately so Larry can win the money and Mary's heart.