The 2011 Dominion Tankard, southern Ontario men's provincial curling championship was held February 7–13 at the Peach King Centre in Grimsby, Ontario.

The winning team of Glenn Howard will represent Ontario at the 2011 Tim Hortons Brier in London, Ontario.

[1] February 7, 2:00pm February 7, 7:30pm February 8, 2:00pm February 8, 7:00pm February 9, 9:00am February 9, 2:00pm February 9, 7:00pm February 10, 2:00pm February 10, 7:00pm February 11, 2:00pm February 11, 7:00pm February 12, 2:00 PM ET February 12, 7:00 PM ET February 13, 9:30 AM ET February 13, 2:00 PM ET December 11–12, Brockville Country Club December 11–12, Brockville Country Club December 10–12, Renfrew Curling Club December 10–12, Trenton Curling Club December 10–12, Bancroft Curling Club December 11–13, Tam Heather Tennis & Curling Club, Scarborough December 11–12, Bayview Golf & Country Club, Thornhill December 11–15, Weston Golf & Country Club December 10–12, Alliston Curling Club December 11–12, Stoud Curling Club December 11–12, Wiarton Curling Club December 11–12, Ayr Curling Club December 10–12, Hamilton Victoria Club December 10–12, Vanastra Curling Club December 10–12, Tillsonburg & District Curling Club December 10–12, Ilderton Curling Club All on January 8–9 weekend Cornwall Curling Centre, Cornwall Uxbdirge and District Curling Club, Uxbridge Bradford and District Curling Club, Bradford Teeswater Curling Club, Teeswater Both are January 21–24 Oshawa Curling Club The B winner must beat the A winner twice in order to advance to the Tankard.

Shelburne Curling Club The B winner must beat the A winner twice in order to advance to the Tankard.