Brian Moore (Belfast, 25 augustus 1921 – Malibu (Californië), 10 januari 1999) was een Iers schrijver.
Hij werd geboren in een groot katholiek doktersgezin. Zijn middelbare schooltijd herinnerde hij zich als een ramp. In de Tweede Wereldoorlog trad hij in dienst van het Britse Ministerie voor Oorlogstransporten en was actief in onder meer Algerije, Italië en Frankrijk.
In 1948 vestigde hij zich in Canada en verwierf het Canadese staatsburgerschap. Vanaf de jaren 50 begon hij te schrijven, waarvoor hij zich altijd afzonderde van zijn gezin en vrienden. In 1964 hertrouwde hij met zijn tweede vrouw, Jean Denney, bij wie hij zich veel gelukkiger voelde. Een jaar later verhuisden ze naar Californië, waar hij in 1999 overleed.
Zijn meest verkochte roman, The Lies of Silence (1990) is een thriller die speelt in Belfast.
Moore maakte zich zorgen over de waanzin en 'dodelijke ziekte' waar Noord-Ierland volgens hem aan leed. In zijn werk wilde hij op de achtergrond blijven.
Moore was born and grew up in Belfast, Northern Ireland. His father was a surgeon and his mother was a nurse. He grew up in a large Roman Catholic family of nine children, but rejected that faith early in life. Some of his novels feature staunchly anti-doctrinaire and anti-clerical themes, and he in particular spoke strongly about the effect of the Church on life in Ireland. A recurring theme in his novels is the concept of the Catholic priesthood. On several occasions he explores the idea of a priest losing his faith. These works were criticized by his sister, a Roman Catholic nun.
Moore was a volunteer air raid warden during the bombing of Belfast by the Luftwaffe. He also served as a civilian with the British Army in North Africa, Italy and France. He went on to work in Eastern Europe after the war ended for the United Nations Relief and Rehabilitation Administration. Moore emigrated to Canada in 1948, worked as a reporter for the Montreal Gazette, and eventually became a citizen of Canada. While he eventually made his primary residence in the United States, he continued to live part of each year in Canada up to his death. He also taught creative writing at UCLA.
Moore lived in Canada from 1948 to 1958, and wrote his first novels there. His earliest novels were thrillers, published under his own name and the pseudonyms Bernard Mara and Michael Bryan. Moore's first novel outside the genre, Judith Hearne, remains among his most highly regarded. The book was rejected by ten American publishers before being accepted by a British publisher. It was made into a film, with Dame Maggie Smith playing the lonely spinster who is the book/film's title character. Several other Moore novels were adapted for the screen, including Intent to Kill (1958), The Luck of Ginger Coffey, Catholics, Black Robe, Cold Heaven, and The Statement. He also wrote the screenplay for Alfred Hitchcock's Torn Curtain and The Blood of Others, based on the novel Le Sang des autres by Simone de Beauvoir.
Brian Moore died in 1999 at his home in Malibu, California, aged 77, of pulmonary fibrosis. He had been working on a novel about the 19th-century French symbolist poet Arthur Rimbaud.
Moore has been the subject of two biographies, Brian Moore: The Chameleon Novelist (1998) by Denis Sampson and Brian Moore: A Biography (2002) by Patricia Craig. One of the first critical retrospectives of Moore's entire body of work can be found in Brian Moore and the Meaning of the Past (2007) by Patrick Hicks.
Information about the publishing of Moore's novel, Judith Hearne, and the break-up of his marriage can be found in Diana Athill's memoir, Stet (2000).
Moore's archives, which includes unfilmed screenplays, drafts of various novels, working notes, a 42-volume journal (1957–1998), and his correspondence, are now at The Harry Ransom Humanities Research Center, University of Texas.