Sydney John Dawes (29 June 1940 – 16 April 2021) was a Welsh rugby union player, playing at centre, and later coach. He captained London Welsh, Wales, the 1971 British Lions and the Barbarians. He is credited with being a major influence in these teams' success, and in the attractive, attacking, free-flowing rugby they played. Dawes also had considerable success as a coach with Wales, and coached the 1977 British Lions. He was appointed an Officer of the Order of the British Empire (OBE) in the 1972 New Year Honours List for services as Lions captain.