The 1931 Macdonald Brier, the Canadian men's national curling championship, was held from March 3 to 5, 1931 at the Granite Club in Toronto, Ontario.

[1] Team Manitoba, skipped by Bob Gourley, captured the Brier Tankard with a round robin record of 8-1.

A tiebreaker game was played to determine the runner-up as both Ontario and Toronto finished the round robin with 6-3 records.

The teams are listed as follows:[3] Skip: Robert Welliver Third: Joe LaFrance Second: Jack Fulton Lead: George Lindsay Skip: Bob Gourley Third: Ernest Pollard Second: Arnold Lockerbie Lead: Ray Stewart Skip: William Brown Third: Art Condie Second: Rob Braithwaite Lead: Harry Walker Skip: Nicholas Thibodeau Third: Joseph Connolly Second: Daniel Connolly Lead: John Kennah Skip: John Nicholson Third: James Shaw Second: George Murr Lead: Lloyd Mason Skip: Henry McLeod Third: Charles Durrant Second: Frank Arthur Lead: H.W.

Gates Skip: Ed Brower Third: John Rennie Second: John Brower Lead: Robert Hamilton Skip: Peter Lyall Third: Ormiston Roy Second: Howard Stewart Lead: John Roy Skip: Jack Miller Third: Bill McArter Second: Bert Barbour Lead: Percy Young[4] Skip: Selvin Meredith Third: A.D. Simon Second: Charles Beelby Lead: Albert Simon