Keith Jarrett (born May 8, 1945 in Allentown, Pennsylvania) is an American pianist and composer.

His career started with Art Blakey, Charles Lloyd and Miles Davis. Since the early 1970s he has enjoyed a great deal of success in both classical music and jazz, as a group leader and a solo performer. His improvisation technique combines not only jazz, but also other forms of music, especially classical, gospel, blues and ethnic folk music.

In 2003 he received the Polar Music Prize, being the first (and to this day only) recipient not sharing the prize with anyone else.