John Quinlan Terry CBE (born 24 July 1937 in Hampstead, London, England) is a British architect. He was educated at Bryanston School and the Architectural Association. He was a pupil of architect Raymond Erith, with whom he formed the partnership Erith & Terry.
Terry is a well-known representative of New Classical Architecture. He continues to practice with his son Francis Terry at the joint Quinlan and Francis Terry LLP.
Quinlan Terry works principally in classical Palladian architectural styles. The website of the firm of Quinlan and Francis Terry LLP states that the firm continues the architectural style of the practice which was started by Raymond Erith in 1928, and specialises in high quality traditional building mostly in Classical idioms. The practice is based in Dedham, Essex and employs between 15 and 20 staff. A book by David Watkin entitled Radical Classicism: The Architecture of Quinlan Terry (New York: Rizzoli International Publications) was published in 2006.
The first work by the older man on which the younger Terry had a major role was the new house Kings Waldenbury, Hertfordshire, completed for the Pilkington family in 1971 when new building in a classical manner was deeply unfashionable. During the three year construction period of the house Terry kept a diary published later in which he bemoans the modern world and stoically defends his conservative, reformed, evangelical faith.
His design for the 1992 Maitland Robinson Library at Downing College, Cambridge won the Building of the Year Award in 1994. One of his best known works is Brentwood Cathedral in Essex. This is radical extension of a nineteenth century Roman Catholic Gothic revival church is in the English Baroque manner owing much to James Gibbs and Thomas Archer and makes little or no attempt to be in keeping with the older building. Terry's new work has a portico based on the south portico of St Paul's cathedral designed by Sir Christopher Wren. Unusually, all five classical orders of architecture were used and Terry has said in lectures that he views classical architecture as an expression of the Divine order.