Andrew James Hamilton Lownie (born 11 November 1961) is a British historian and author. He has written books about the royal family. This includes ' on the Duke of Windsor and his links with the Nazis, and ' on Andrew Mountbatten-Windsor and his involvement with Jeffrey Epstein. He has also written biographies of John Buchan and the Soviet spy Guy Burgess.
Andrew Lownie was born in Scotland during November 1961 to Claudine Lecrocq (1932-2019) and Judge Ralph Lownie (1924âÂÂ2007). He was educated at Cargilfield Preparatory School, Fettes College, Asheville School, North Carolina, and Westminster School, followed by Magdalene College, Cambridge, and was President of the Cambridge Union in Easter term 1984. He has a master's degree and doctorate from the University of Edinburgh, and is a Fellow of the Royal Historical Society. His doctoral thesis (2019) was titled "Stalin's Englishman: the lives of Guy Burgess: biography in intelligence history" and discussed his own 2015 book on Burgess.
Lownie founded his eponymous literary agency in 1988. It specialises in non-fiction, representing some 200 authors, and is reported to have "regularly been the top selling agent in the world." He founded, and is president of, The Biographers' Club, a group "committed to supporting, promoting and connecting biographers at all levels."
Lownie has written biographies of writer John Buchan, spy Guy Burgess and Lord Mountbatten and his wife Edwina. While researching for his book on the Mountbattens, Lownie found himself blocked by the Cabinet Office and University of Southampton from accessing some archive material, despite public money having been used in 2011 to acquire certain Mountbatten family papers for the university in order to "ensure public access".
In 2021, Lownie published ', a biography, based on fresh sources, of the Duke of Windsor. The former Edward VIII is alleged by Lownie to have been a Nazi sympathiser who gave aid and comfort to his country's enemies before and during the Second World War.
Lownie's biography of Andrew Mountbatten-Windsor (formerly Prince Andrew, Duke of York) and his former wife Sarah Ferguson, ', was published in 2025. It contains a discussion of the then-Duke's role as a British trade envoy, as well as an account of his relationship with Jeffrey Epstein.
Lownie has also written a literary guide to Edinburgh, and edited several volumes of John Buchan's works.
In March 2026, The Times reported that Lownie's next endeavour would be a biography on the late Prince Philip. Lownie did however say that this would not "be a hatchet job".
In 1998, Lownie married Angela Doyle, who writes histories of London houses, and they have two children.