| Association | School (Seeding in brackets) |
| CISAA | Villanova College (17) |
| COSSA | Nicholson Catholic College (6) |
| COSSA (HOST ENTRY) | Norwood District HS (18) |
| CWOSSA | Woodland Christian High School (1) |
| EOSSAA |
Académie catholique Ange-Gabriel (3) |
| GBSSA | Elmvale District HS (15) |
| GHAC | École Secondaire Catholique Sainte-Trinité (12) |
| LOSSA | É.C. Saint-Charles Garnier (14) |
| NCSSAA | Osgoode Township HS (4) |
| NEOAA | O’Gorman HS (5) |
| NOSSA | E.S.C. L’Horizon (13) |
| NWOSSAA | St. Thomas Aquinas High School (16) |
| SOSSA | Hamilton District Christian H.S. (2) |
| SWOSSAA | John McGregor SS (7) |
| TDCAA | University of Toronto Schools (8) |
| TDSSAA | Ursula Franklin Academy (11) |
| WOSSAA | Mitchell District HS (9) |
| YRAA | Toronto District Christian H.S. (10) |
| SCHOOL | ASSOCIATION | SEED |