Holy Trinity Church is an Anglican church on North Terrace, in the city of Adelaide, South Australia. In terms of weekly attendance, Trinity is the largest Anglican church in South Australia, with 5 services on the North Terrace location each Sunday, 5 Sunday services in four church plants and various other meetings throughout the week. The style of these services ranges through Traditional Anglican, Family and Modern Youth services.
Trinity is part of the Adelaide Diocese and has an increasing number of locally trained staff, particularly trainees through the Ministry Training Strategy and students of the Bible College of South Australia. In 2007 Trinity was involved in initiating 'equip', a training program for Evangelical Anglican Churches in South Australia.