Holy Trinity Church is an Anglican church in the centre of Hastings, a town and borough in the English county of East Sussex. It was built during the 1850s—a period when Hastings was growing rapidly as a seaside resort—by prolific and eccentric architect Samuel Sanders Teulon, who was "chief among the rogue architects of the mid-Victorian Gothic Revival". The Decorated/Early English-style church is distinguished by its opulently decorated interior and its layout on a difficult, "crazy" town-centre site, chosen after another location was found to be unsuitable. The church took eight years to build, and a planned tower was never added. English Heritage has listed the building at Grade II* for its architectural and historical importance.