Maurice L'Abbé (1920 – July 21, 2006) was a Canadian academic and mathematician.

Born in Ottawa, Ontario, L'Abbé obtained his license in mathematics in 1945 from the Université de Montréal, and a doctorate in mathematics from the Princeton University in 1951.

He was director of the Université de Montréal's Department of Mathematics from 1957 to 1968.

[1] In 1968, he helped to establish the Centre de Recherches Mathématiques, the first mathematical research institute in Canada.

[1] In 1993, he was made an Officer of the National Order of Quebec.