Peter Scott Williams (born 13 December 1986) is a British former racing cyclist, who competed between 2008 and 2021 for British UCI Continental teams Node 4–Giordana Racing, Team IG–Sigma Sport, ONE Pro Cycling and SwiftCarbon Pro Cycling. He won the sprints classification at the Tour of Britain in 2012 and 2015, and also won the mountains classification at the race in 2015.