Cuby (Cornish: Sen Kubi) is a village and former civil parish, now in the parish of Tregony with Cuby in Cornwall, England, United Kingdom, situated approximately 7 miles (12 km) southwest of St Austell.

[3] In November 2020, the parish council voted to merge with neighbouring Tregony.

The church was rebuilt in 1828 though some of the medieval masonry still exists on the north side and the tower (of two stages) is of the 14th century.

[7] William Hennah, first lieutenant of HMS Mars is buried at Cuby Parish Church.

His ship was part of the British fleet under Lord Nelson at the Battle of Trafalgar.