The Ontario Lacrosse Association is a not-for-profit sport organization and a member association of the Canadian Lacrosse Association, the national governing body for lacrosse in Canada. The Ontario Lacrosse Association is the largest provincial lacrosse governing body within Canada. The mission of Ontario Lacrosse is to grow, lead, promote, and govern the sport of lacrosse within the province by fostering participation at every level. It was established in 1897.