Sean John Combs (born November 4, 1969), known by his stage name Diddy, is an American record producer, rapper, actor, men's fashion designer, entrepreneur and dancer. He won three Grammy Awards and two MTV Video Music Awards, and his clothing line earned a Council of Fashion Designers of America award.

He was originally known as Puff Daddy and then as P. Diddy (Puff and Puffy being often used as a nickname, but never as recording names). In August 2005, he changed his stage name to simply "Diddy". He continues to use the name P. Diddy in New Zealand and the United Kingdom, the latter after a legal battle with another artist, Richard "Diddy" Dearlove. In June 2008 Combs' representative denied rumors of another name change.

His business interests under the umbrella of Bad Boy Entertainment Worldwide include Bad Boy Records; the clothing lines Sean John; Sean by Sean Combs, a movie production company; and two restaurants. He has taken the roles of recording executive, performer, producer of MTV's Making the Band, writer, arranger, clothing designer, and Broadway actor.