The Holy Trinity Church is an Anglican church located in Clapham, London. Completed in 1776, it was the base for the so-called Clapham Sect who worshipped there. It is located on the north side of Clapham Common and is a Grade II* listed building.

Clapham is a district in south west London, England, lying mostly within the London Borough of Lambeth, but with some areas extending into the neighbouring London Borough of Wandsworth.