The Philadelphia Story is a 1939 American comic play by Philip Barry. It tells the story of a socialite whose wedding plans are complicated by the simultaneous arrival of her ex-husband and an attractive journalist. Written as a vehicle for Katharine Hepburn, its success marked a reversal of fortunes for the actress, who was one of the film stars deemed "box office poison" in 1938.

Philip Jerome Quinn Barry was an American dramatist best known for his plays Holiday (1928) and The Philadelphia Story (1939), which were both made into films starring Katharine Hepburn and Cary Grant.