What's New Pussycat? is a 1965 screwball comedy film directed by Clive Donner, written by Woody Allen in his first produced screenplay, and starring Allen in his acting debut, along with Peter Sellers, Peter O'Toole, Romy Schneider, Capucine, Paula Prentiss, and Ursula Andress.

The Academy Award-nominated title song by Burt Bacharach (music) and Hal David (lyrics) is sung by Tom Jones. The film poster was painted by Frank Frazetta, and the animated title sequence was directed by Richard Williams.

The expression "what's new pussycat?" arose from Charles K. Feldman, the producer, overhearing Warren Beatty, who was original choice for the lead role, answering the phone to a girlfriend and saying "what's up pussycat". In the film, Michael (O'Toole) calls all women "Pussycat" to avoid having to remember their names.