Ontario Soccer is a Canadian soccer organization. Established in 1901, Ontario Soccer is one of the oldest sports organizations in Canada. Ontario Soccer is composed of over 350,000 players, as well as coaches, referees, and administrators.

Situated at Zanchin Automotive Soccer Centre in Vaughan, Ontario Soccer functions through its 18 member District Associations ("Districts"). District Association membership includes over 500 Youth Clubs and Senior Clubs across Ontario.

Ontario Soccer has five types of members:

There are currently 21 Active Members, 14 Associate Members (including 11 Leagues) and 11 Life Members. There are no Professional Soccer Club Members and no Honorary Members. The current Members are listed below by category.

Ontario Soccer District Association Members (as of Jan 2023):

Former District Associations

Associate Members: Central Girls Soccer League, Central Soccer League, East Region Soccer League, North Region Soccer League, Ontario Colleges Athletic Association, Ontario Indoor Soccer League, Ontario Soccer League, Ontario Soccer Referees’ Association, Ontario University Athletics, Ontario Women's Soccer League, Ontario Youth Soccer League, South Region Soccer League, Western Ontario Youth Soccer League,

Life Members: Lois Brewer, Tom Doyle, Lewis Edwards, Jim Ellis, Edward Grenda, William Hoyle, Terence Kelly, George MacDonald, Alan Southard, Jack Strachan, Clive Wilkinson, Les Wilkinson