The 2026 Ontario Premier League season is the twelfth of the Ontario Premier League (and the first since rebranding from League1 Ontario), a Division 3 men's soccer league in the Canadian soccer league system and the highest level of soccer based in the Canadian province of Ontario. The league is split into three divisions with promotion and relegation between them.
The 2026 season will inherit the three divisions from the League1 Ontario system but they will be rebranded as Ontario Premier League 1, Ontario Premier League 2 and Ontario Premier League 3 respectively. The OPL will feature 28 independent clubs, with Kingston Sentinels and Richmond Hill SC joining from the bottom of the system.
The OPL1 and the OPL2 divisions will both be composed of 12 clubs, most returning from last season, with the exception of International FC that has replaced Alliance United FC in the top division. The OPL3 will be made up by three conferences containing total of 28 teams. These will be mostly reserve teams with some "A" teams and two newly licensed clubs.
Ontario Premier League 1 will be composed of 12 teams. Unionville Milliken SC and Sudbury Cyclones were promoted from the Championship division last season. Alliance United FC left the league and their license was bought by International FC.
The 12 teams will face each other twice, once at home and once away for a total of 22 matches. At the end of the season, the club at the top of the standings will be crowned as Ontario Premier League champions and gain a berth for the 2027 Canadian Championship. The club that finishes in 11th will advance to the promotion playoffs against the second place finisher in the OPL2, while the 12th placed club will be automatically relegated to the OPL2 division.
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A playoff will be played between the 11th placed team in the OPL1 and the 2nd placed team in the OPL2 in a single game for a place in the top tier in 2027.
Ontario Premier League 2 is composed of 12 teams, ten of those returning from the 2026 season. FC London joined after being relegated from the Premier divison and Cambridge United joined after being promoted from the League2 divison. York United FC Academy rebranded to Inter Toronto II following their CPL side's change of identity.
The first place team in the standings will be automatically promoted to the OPL1 for 2027, while the second place finisher will advance to the promotion playoffs against the 11th place finisher in the OPL1. The last place team will be relegated to the OPL3 for 2027.
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Ontario Premier League 3 clubs will be divided in three regional conferences. Those clubs will be "A" teams for which there is not room in the higher leagues, the "B" teams of OPL1 and OPL2 clubs, or newly licensed clubs. Kingston Sentinels and Richmond Hill SC join as expansion teams.
The winner of each division, as well as the best second place finisher will advance to the OPL3 Playoffs. The winner of the playoffs will earn promotion to the OPL2 division. If the winner of the playoffs is a B team, they may decline promotion, and instead the top two A teams with the most regular-season points in the division will meet in a playoff to earn promotion.
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The League Cup is a league cup tournament that is contested by A teams from all three tiers of Ontario Premier League.
All 28 "A" teams will participate in the five-round knockout competition, which is played concurrently with the league season. Twenty-four clubs will enter the first round (eight clubs from OPL1, all twelve clubs from OP2, and the four A teams from OPL3), while four clubs from the OPL1 will receive a bye to the round of 16.
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