People educated at Monmouth School for Boys

Welsh equestrian

British actor (1921–2004)

British rower

Welsh musician

British politician and rower (born 1955)

Welsh actor and theatre director

Welsh actor

English retired rugby union referee

racing cyclist

Welsh politician

British biologist

British photographer (1904-1990)

bridge designer, born 1928

Welsh rugby union player

Welsh rugby union footballer and commentator (1957–2022)

cricketer

British military personnel

English rugby union footballer and cricketer (born 1967)

British civil servant who spied for the Soviet Union (1924-1996)

British businessman and engineer (born 1961)