U18 Ontario Curling Championships

The U18 Ontario Curling Championships (formerly the Ontario Bantam Curling Championships) is the provincial under-18 men's and women's curling championship for Southern Ontario. The event is organized by Curling Ontario, and the winning teams represent Ontario at the Canadian U18 Curling Championships.

When the event was known as the Ontario Bantam Championships, it was eligible for curlers 16 and under. The event became the U18 championships in 2017.^[1]