Percy Thornley Stallard (19 July 1909 – 11 August 2001) was an English racing cyclist who reintroduced massed-start road racing on British roads in the 1940s.

Born in Wolverhampton, at his father's boarding house in Broad Street which later became his bike shop, Stallard became a member of the Wolverhampton Wheelers Cycling club and a keen competitor in cycle races, competing for Great Britain in international races during the 1930s, including three consecutive world championships (1933–1935). He was also a successful cycling coach and team captain.