John Abercrombie (b. 1944) is a U.S. jazz guitarist.

Abercrombie was born on 16th December 1944 in Port Chester, New York. He first came to prominence with fusion-oriented recordings in the 1970s. His first album, Timeless, with Jack DeJohnette, and Mahavishnu Orchestra's Jan Hammer was an international success. He is also known for his work with Stark Reality, Billy Cobham, Ralph Towner, and the Brecker Brothers.