The Church of the Holy Trinity is a Greek Orthodox church in Brighton, part of the English city of Brighton and Hove. Built in 1838 in one of Brighton's most notorious slum districts, Carlton Hill, it was an Anglican church for most of its life: dedicated to St John the Evangelist, it was used by the Anglican community until it was declared redundant in 1980. After some uncertainty about its future, it was sold to Brighton's Greek Orthodox community in 1985 and has been used as their permanent place of worship since then.