Maurice Riel, PCQC (April 3, 1922 – July 20, 2007) was a Canadian lawyer and Senator.
A distant relative of Louis Riel, Maurice Riel studied law and was admitted to the bar of Quebec in 1945. Establishing his own law firm in Montreal with Louis-René Beaudoin under the name Beaudoin, Riel Geoffrion & Vermette, Riel worked in international law with a number of clients in France. He also practiced at Dunton Rainville. He was appointed Queen's Counsel in 1958, and served as chairman of the Metropolitan Montreal Corporation from 1965 to 1969. He served on the board of the Bank of Canada from 1969 to 1973.