James Michael Imperioli (born March 26, 1966), commonly known as Michael Imperioli, is an American actor. He is perhaps best known for his role as Christopher Moltisanti on The Sopranos. He also appeared as Det. Ed Green's temporary replacement, Det. Nick Falco, in the popular TV drama series Law & Order. Imperioli has spent the 2008-2009 television season as Detective Ray Carling in the US version of Life on Mars.

Imperioli, an Italian American, was born in Mount Vernon, New York, the son of Dan Imperioli, a bus driver and amateur actor.

In addition to his role on The Sopranos, Imperioli has appeared in a number of films, including Goodfellas, Jungle Fever, Bad Boys, The Basketball Diaries, Clockers, Dead Presidents, Lean on Me, I Shot Andy Warhol, Last Man Standing, Shark Tale, High Roller: The Stu Ungar Story, and Summer of Sam, which he also co-wrote and co-produced. In addition, he has also written a number of episodes for The Sopranos.