Marjorie May "Maggie" Siggins (born 28 May 1942) is a Canadian journalist and writer.
She was a recipient of the 1992 Governor General's Award for Literary Merit for her non-fiction work Revenge of the Land: A Century of Greed, Tragedy and Murder on a Saskatchewan Farm.
She was also the recipient of the 1986 Arthur Ellis Award for "Best true crime book" for her work A Canadian Tragedy, about the involvement of former Saskatchewan politician Colin Thatcher in the murder of his wife JoAnn Wilson.
The book was later adapted into the television miniseries Love and Hate: The Story of Colin and JoAnn Thatcher.
In Her Own time: A Class Reunion Inspires a Cultural History of Women and Bitter Embrace:White Society's Assault on the Woodland Cree are her last two books.