Janet Patricia Morgan, Lady Balfour of Burleigh CBE, FRSE (born December 1945) is a Canadian-born English writer and historian.

The daughter of Dr. Frank Morgan and Sheila Saddler, she was born Janet Morgan in Montreal while her father was working on a top-secret British atomic research project, the Montreal Laboratory. She returned to England with her family before the end of World War II.^[1] She earned a MA and PhD. She was named a Commander in the Order of the British Empire in 2008. She is a fellow of the Royal Society of Edinburgh.^[2]

In 1993, she married Robert Bruce, Lord Balfour of Burleigh.^[2]

She has been chair of the Scottish Cultural Resources Access Network, the Nuclear Liabilities Fund and the Nuclear Trust. She has served as a director of the Scottish Oriental Smaller Companies Trust and Murray International Trust.^[3]

Morgan wrote a biography of Agatha Christie that was authorized by the writer's family. She also wrote biographies of Edwina Mountbatten and George Bruce, her father-in-law and the previous Lord Balfour of Burleigh. She was editor for The Backbench Diaries of Richard Crossman.^[4]