Margaret Elphinstone is a Scottish novelist. She studied at Queen's College in London and Durham University, where she graduated in English Language and Literature. She was until recently, Professor of Writing in the Department of English Studies at the University of Strathclyde in Glasgow, now retired. Her academic research areas are Scottish writers and the literature of Scotland's offshore islands.

Elphinstone published her first futuristic novel in 1987. Her first historical novel, The Sea Road was published in 2000 and won won a Scottish Arts Council Spring Book Award. She is also the author of Lost People (Wild Game Publications, 2024) The Gathering Night (Canongate Books, 2009), Gato (Sandstone Press, 2007), Light (Canongate Books, 2006), Voyagers (Canongate Books, 2003), Hy Brasil (Canongate Books, 2002), Islanders (Polygon, 1994), Apple from a Tree (Women's Press, 1990), A Sparrow's Flight (Polygon, 1989), and The Incomer (Women's Press, 1987).

She did extensive study tours in Iceland, Greenland, Labrador and the United States. She lived for eight years in the Shetland Islands and is the mother of two children.