Geoffrey Stanley Trueman (7 January 1926 – 28 June 1981) was an Australian cricketer.^[1] He played 24 first-class matches for New South Wales between the 1951–52 and 1953–54 seasons.^[2]

Geoffrey Trueman was born at Sydney in New South Wales in 1926. He played as a wicket-keeper for New South Wales in the early 1950s.^[3] He played a total of 24 matches for the side, scoring 135 runs and being involved in 82 dismissals. These featured 20 stumpings, 18 of which were from the bowling of Richie Benaud.^[2][3] He played in two Sheffield Shield winning sides, New South Wales winning the Shield in his first and last seasons in first-class cricket. His Wisden obituary reported that he had come close to selection for the Australia national cricket team.^[3]

After taking a job at a hotel at Junee, Trueman declared himself "unavailable" for the New South Wales team in late 1954 and did not play again for the State side.^[4][5][6] He played Victorian Premier Cricket cricket for South Melbourne Cricket Club later in the decade.^[2] He died at Sydney in 1981 aged 55.^[1]