Trethewey
![Coastguard base at Little Trethewey](/Images/godic/202502/17/Coastguard_base_at_Little_Trethewey_-_geograph.org.uk_-_15439583208.jpg")
Trethewey (Cornish:Tredhewi) is a hamlet in west Cornwall, England, United Kingdom. It forms part of St Levan civil parish. The village includes a Wesleyan chapel and schoolroom, built in 1868.
Trethewey lies within the Cornwall Area of Outstanding Natural Beauty (AONB). Almost a third of Cornwall has AONB designation, with the same status and protection as a National Park.