The 2010 Ontario Scotties Tournament of Hearts will be the 2010 edition of the Ontario provincial women's curling championship. It was held January 4–10 at the Port Arthur Curling Club in Thunder Bay, Ontario. The winning team will represent Ontario at the 2010 Scotties Tournament of Hearts in Sault Ste. Marie, Ontario.
January 4, 12:00 PM
January 4, 7:00 PM
January 5, 12:00 PM
January 5, 7:00 PM
January 6, 12:00 PM
January 6, 7:00 PM
January 7, 2:00 PM
January 7, 7:00 PM
January 8, 11:00 AM
January 8, 7:00 PM
January 9, 2:00 PM
January 9, 2:00 PM
January 9, 7:00 PM
January 10, 2:00 PM
Regional qualifiers in bold. Two teams qualify from each zone. When only one team enters a zone, then a team from the neighbouring zone also qualifies. Teams in italics opted to play in the challenge round after being eliminated.
November 21–22 at the Rideau Curling Club
November 21–22 at the Rideau Curling Club
November 28–29 at the Carleton Place Curling Club
December 4–6 at the Land O'Lakes Curling Club (Tweed). No teams entered
November 27–29 at the Haliburton Curling Club
December 4–6, Annandale Country Club (Ajax)
November 28–29, East York Curling Club
November 28-December 2, Mississaugua Golf & Country Club
December 4–6, Acton Curling Club