William Scott Bruford (born 17 May 1949) is an English former drummer and percussionist who first gained prominence as a founding member of the progressive rock band Yes. After leaving Yes in 1972, Bruford spent the rest of the 1970s recording and touring with King Crimson (1972–1974), Roy Harper (1975), and U.K. (1978), as well as touring with Genesis (1976). In 1978, he formed his own group, Bruford, which was active until 1980.

During the 1980s, Bruford returned to King Crimson for three years (1981–1984), collaborated with several artists (including Patrick Moraz and David Torn), and formed his own electric jazz band Earthworks in 1986. He then played with his former Yes bandmates in Anderson Bruford Wakeman Howe, which eventually led to a very brief second stint in Yes. Bruford played in King Crimson for his third and final tenure from 1994 to 1997, then continued with a new acoustic configuration of Earthworks.

On 1 January 2009, Bruford retired from professional drumming, only briefly returning for a few private gigs. He has pursued other projects since then, including the operation of his two record labels, Summerfold and Winterfold, releasing an autobiography in 2009, and speaking and writing about music. In 2016, after four and a half years of study, Bruford received a PhD in Music from the University of Surrey. That year, Bruford ranked No. 16 on Rolling Stone's list of the "100 Greatest Drummers of All Time". In 2017, Bruford was inducted into the Rock and Roll Hall of Fame as a member of Yes.