Holy Trinity Brompton

Holy Trinity Brompton with St Paul's Onslow Square and St Augustine's South Kensington, often referred to simply as HTB, is an Anglican church in London, England.

The church consists of six sites: HTB Brompton Road, HTB Onslow Square (formerly St Paul's, Onslow Square), HTB Queen's Gate (formerly St Augustine's, South Kensington), HTB Courtfield Gardens (formerly St Jude's Church, Kensington – officially in the parish of St Mary of the Bolton's but part of HTB). It is also the home of the St Paul's Theological Centre, HTB St Francis Dalgarno Way, and St Luke's Earls Court. It is where the Alpha Course was first developed.

The church buildings accommodate courses, conferences, meetings, and ten services each Sunday. HTB's stated aims are to "play our part in the evangelization of the nations, the revitalization of the church and the transformation of society."

Bishop Sandy Millar was succeeded in July 2005 by Nicky Gumbel as vicar of HTB, followed by Archie Coates in September 2022. HTB's associate vicar is Katherine Chow, who succeeded Nicky Lee and Martyn Layzell.

Prior to the construction of Holy Trinity Brompton, the present site was a part of the large parish of Kensington, which was served only by the nearby St Mary Abbots Church. In the early 1820s, the area was in the midst of a substantial population increase, so a decision was taken to purchase the land and construct a new church.

The church was a Commissioners' church, receiving a grant from the Church Building Commission towards its cost. The full cost of the church was £10,407 (equivalent to £1,140,000 in 2023), towards which the Commission paid £7,407. The architect was Thomas Leverton Donaldson. Holy Trinity is a Grade II listed building.

After three years of construction, the church was consecrated on 6 June 1829 by the Bishop of London. The same building stands today, although it has been considerably modified. In 1852 a portion of Holy Trinity Brompton's land was sold to the Roman Catholic Church to build the Brompton Oratory. This created the long driveway from Brompton Road to the relative tranquil of HTB.

The most recent major modification was during the 1980s when HTB's crypt was rebuilt to provide meeting rooms and space for a bookshop. Also during this time, the pews were removed and replaced with chairs to allow greater flexibility in seating arrangements.