Stu Sells Oakville Tankard

The Stu Sells Oakville Tankard (also known as the OCT Championships) is an annual bonspiel on the men's and women's Ontario Curling Tour. It is held annually in September at the Oakville Curling Club in Oakville, Ontario. The event was formerly just on the Ontario Curling Tour, but it was promoted as a World Curling Tour event in 2013 when Stu Sells became the sponsor.

The purse for the event is $27,000 for the men's and $24,000 for the women's. A Tier 2 men's event was added in 2016, with a total purse of $16,000.