Dunlop Crawford John Manners (24 August 1916 – 14 August 1994) was an English first-class cricketer and British Army officer. Manners served with the Buffs (Royal East Kent Regiment) from 1936–1961, during which he served in the Second World War and played first-class cricket for the British Army cricket team.

Manners was born at Kuala Lumpur in the Federated Malay States, before coming to England where was educated at Lancing College.^[1] After completing his education, he chose a career in the British Army and enlisted with the Buffs (Royal East Kent Regiment) as a second lieutenant in December 1936.^[2] He made a single appearance in first-class cricket for the British Army cricket team against Cambridge University at Fenner's in 1939.^[3] Batting once in the match, Manners scored 33 not out in the Army first-innings, while with the ball he took a single wicket, that of Patrick Dickinson in the Cambridge University first-innings.^[4]

He served with the Buffs in the Second World War, during which he was promoted to the rank of lieutenant in January 1941.^[5] Following the war, he was promoted to the rank of captain in July 1946,^[6] with promotion to the rank of major coming in January 1952.^[7] He was made a brevet lieutenant colonel in November 1956,^[8] and achieved the full rank in December 1959.^[9] Manners retired from active service in August 1961.^[10] He later emigrated to South Africa, where he died at Durban in August 1994.