Richard Matthewson Keith (15 May 1933 – 28 February 1967) was a professional footballer from Northern Ireland who played as a right-back.
He made over 200 appearances for English club Newcastle United between 1956 and 1964, and also played for Linfield, Bournemouth & Boscombe Athletic and Weymouth, and was a member of the Northern Ireland squad at the 1958 World Cup.