Jason Francesco Schwartzman (born June 26, 1980) is an American actor and musician. He is perhaps best known for his roles in the films Rushmore, Spun, I ♥ Huckabees, Shopgirl, Marie Antoinette, The Darjeeling Limited, and Funny People. He is currently in the band Coconut Records; formerly, he was a member of the rock band Phantom Planet. He also appears in the new HBO comedy series Bored to Death.

Schwartzman was born in Los Angeles, California; the son of actress Talia Shire (née Coppola) and the late producer Jack Schwartzman. Many other members of Schwartzman's family are involved in film; he is the nephew of Francis Ford Coppola, cousin of Nicolas Cage, Sofia Coppola, Roman Coppola and Christopher Coppola, and grandson of Italia Coppola (née Pennino) and Carmine Coppola. His brother is actor/musician Robert Schwartzman (vocalist for the band Rooney), and his half-brother is cinematographer John Schwartzman. Schwartzman is of Italian descent on his mother's side and Ashkenazi Jewish descent on his father's, and was raised without religion.

Schwartzman is known for his roles in the films The Darjeeling Limited, Rushmore, Shopgirl, I ♥ Huckabees, Spun, and Slackers. Prior to acting, he was the drummer and a songwriter for the band Phantom Planet. Despite leaving the band for an acting career, he still composes music for some films. He appears in the music video for the rock remix of "It's All About the Benjamins" by Puff Daddy. He also contributed to Ben Lee's 2005 album Awake Is the New Sleep. In 2006, he starred in Marie Antoinette under the direction of his cousin, Sofia Coppola, in which he appeared as King Louis XVI with Kirsten Dunst in the title role. He made a cameo appearance in the Judd Apatow-produced musician biopic spoof Walk Hard as Ringo Starr. In 2009, he appeared in Apatow's third directorial feature entitled Funny People, in which he played Mark, a C-list television star.