The Ontario Lacrosse Association (Ontario Lacrosse) 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 the OLA is to govern, improve, foster, and perpetuate the sport of lacrosse in Ontario. It was established in 1897. One of the oldest team sports in North America, the origins of lacrosse lie with the Native American people who lived in Ontario, Quebec and western New York. The first written rules were established in 1867, and although formal amateur provincial competition began in 1887, the Ontario Lacrosse Association was not established as the provincial governing body of the sport until ten years later. In the 1930s, the birth of box lacrosse (indoor lacrosse) increased the popularity of the sport among both athletes and observers. Although official competition was impacted by the number of participants available during both World War I and World War II, lacrosse teams have maintained activity on an annual basis since the inception of the Ontario Lacrosse Association.

Leadership

Sean O'Callaghan, President Ian Garrison, VP Officiating Colleen Grimes, VP Promotion Reg Hollinshead, VP Junior - Major Lacrosse George MacDonald, VP Finance Rick Phillips, VP Coaching Sonya Crossey - VP Development Jennifer Price, VP Field Lacrosse Mary Stica, VP Minor Lacrosse Marion Ladouceur, Past President

Leagues

Senior Junior Minor

Minor Box Lacrosse Clubs

There are 66 minor box lacrosse clubs in the Ontario Lacrosse Association. Minor box clubs are divided into zones for league play and the provincial champion is crowned in 6 divisions every August at the Ontario Lacrosse Festival in Durham Region. Zone 1 Sault Ste. Marie Spartans Thunder Bay Ice Zone 4 Barrie Bombers Huntsville Hawks Innisfil Wolfpack Midland Braves New Tecumseth Renegades Orillia Kings Stayner Hitmen Sudbury Rockhounds Tri-Town Rock Devils Shelburne Vets Zone 5 Akwesasne Storm Cornwall Celtics Gloucester Griffins Kahnawake Mohawks Kingston Krossfire Nepean Knights North Shore Kodiaks Quinte Bayhawks South Shore Centurions Tyendinaga Thunderbirds Zone 6 Clarington Gaels Kawartha Lakes Fury Northumberland Nemesis Oshawa Blue Knights Peterborough Lakers Stouffville Thunder Toronto Beaches Toronto Stars Uxbridge Enforcers West Durham Lacrosse Club Whitby Warriors Zone 7 London Blue Devils Sarnia Pacers Strathroy Screaming Eagles Wallaceburg Griffins Windsor Warlocks Zone 8 Arthur Aces Brantford Warriors Cambridge Chiefs Centre Wellington Mohawks Guelph Regals Kitchener Braves North Perth Outlaws Owen Sound North Stars West Grey Rampage Wilmot Wild Zone 9 Burlington Chiefs Fort Erie Hawks Hamilton Bengals Lincoln Redcoats Niagara Thunderhawks Pelham Raiders Simcoe Timberwolves Six Nations St. Catharines Athletics Zone 10 Brampton Excelsiors Caledon Bandits Halton Hills Bulldogs Milton Mavericks Mimico Mountaineers Mississauga Badgers Newmarket Redbirds Oakville Hawks Orangeville Northmen

National championships

The champion of four of the OLA's five box leagues compete in national championships: