William Ronald Joseph Elliott (born 20 November 1952) is a former sportsperson from Northern Ireland who represented Ulster in both cricket and rugby union. He was capped once for Ireland as a rugby union player.
Born in Donaghadee, Elliott was educated at Regent House School.
Elliott, a school teacher by profession, gained a rugby cap for Ireland against Scotland at Murrayfield in the 1979 Five Nations, playing as a fullback. He was club captain of Bangor RFC and also led the Donaghadee Cricket Club.