Green monkey may refer to
Biology Green monkey (Chlorocebus sabaeus), also known as the Sabaeus monkey or the Callithrix monkey Chlorocebus, sometimes called the African green monkey Green monkey disease, the Marburg virus disease
Other Alphege, or the Green Monkey, fairy tale The Green Monkey, an American Thoroughbred racehorse Green Monkeys, team designation within the Legends of the Hidden Temple children's game show
See also "Green Monkey Dreams", a 1996 short story by Isobelle Carmody