The 2010 Ontario Men's Curling Championship was held February 1-7th, 2010 at the Strathcona Paper Centre in Napanee.
Eleven teams participated.
It marked the first year that the defending champion (Glenn Howard's rink) would get an automatic berth.
Winner Glenn Howard went on to represent Ontario at the 2010 Tim Hortons Brier in Halifax, Nova Scotia, losing in the final to Kevin Koe's Alberta rink.
February 1, 14:00 February 1, 19:15 February 2, 14:00 February 2, 19:00 February 3, 09:00 February 3, 14:00 February 3, 19:00 February 4, 14:00 February 4, 19:00 February 5, 14:00 February 5, 19:00 February 6, 1400 February 6, 1900 February 7, 930 February 7, 1400 Teams entered by OCA Zone December 11–13, Ottawa Curling Club December 11–13, Ottawa Curling Club December 12–13, Arnprior Curling Club December 4–6, Land O'Lakes Curling Club, Tweed December 19–20, Beaverton Curling Club December 4–6, Annandale Country Club, Ajax December 12–15 at the Toronto Cricket, Skating & Curling Club December 18–20, High Park Club December 4–5, Acton Curling Club December 19–20, South Muskoka Curling & Golf Club, Bracebridge December 4–6, Tara Curling Club December 4–6 Arthur & Area Curling Club December 18–21, Glendale Golf & Country Club, Hamilton December 4–6, Walkerton Golf & Country Club December 4–6, Tavistock Curling Club December 4–6, Glencoe & District Curling Club