Constantine () (, meaning "church enclosure of St Constantine") is a village and civil parish in Cornwall, England, United Kingdom. It is situated approximately five miles (8 km) west-southwest of Falmouth. The electoral ward also bears the same name but includes Budock Water and the surrounding area. At the 2011 census, the population of the ward was 4,709 and the population of the civil parish was 1,789. The parish of Constantine is bounded by the parishes of Mabe, Mawnan, Gweek, Wendron and the north bank of the Helford River.