Chacewater is a village and civil parish in Cornwall, England, UK. It is situated approximately 3 miles (4.8 km) east of Redruth. The hamlets of Carnhot, Cox Hill, Creegbrawse, Hale Mills, Jolly's Bottom, Salem, Saveock, Scorrier, Todpool, Twelveheads and Wheal Busy are in the parish. The electoral ward is called Chacewater & Kenwyn. At the 2011 census a population of 3,870 was quoted.

Wheal Busy, sometimes called Great Wheal Busy and in its early years known as Chacewater Mine, was a metalliferous mine halfway between Redruth and Truro in the Gwennap mining area of Cornwall, England. During the 18th century the mine produced enormous amounts of copper ore and was very wealthy, but from the later 19th century onwards was not profitable. Today the site of the mine is part of the Cornwall and West Devon Mining Landscape, a UNESCO World Heritage Site.