Robert Fripp (born 16 May 1946) is an English musician, songwriter, and record producer, best known as the guitarist, founder and longest-lasting member of the progressive rock band King Crimson. He has worked extensively as a session musician and collaborator, notably with David Bowie, Blondie, Brian Eno, Peter Gabriel, Daryl Hall, Midge Ure, Talking Heads, and David Sylvian. He has also contributed sounds to the Windows Vistaoperating system. His discography includes contributions to over 700 official releases.

Fripp is ranked 62nd on Rolling Stone magazine’s 2011 list of the 100 Greatest Guitarists of All Time after having been ranked 42nd by David Frickeon its 2003 list. Tied with Andrés Segovia, he also is ranked 47th on Gibson’s Top 50 guitarists of all time. His compositions often feature unusual time signatures, which have been influenced by classical and folk traditions. His innovations include a tape delay system known as “Frippertronics” and new standard tuning.