| CISAA | Upper Canada College |
| COSSA | Thomas A. Stewart S.S. |
| CWOSSA | Huron Heights S.S. (Kitchener) |
| EOSSAA #1 | Frontenac Secondary School |
| EOSSAA #2 | Holy Cross Catholic Secondary School (Host) |
| GBSSA | St. Joan of Arc S.S. |
| GHAC #1 | Oakville Trafalgar H.S. |
| GHAC #2 | Garth Webb |
| LOSSA | Uxbridge S.S. |
| NCSSAA | Ecole secondaire catholique Franco-Cité |
| NOSSA #1 | St. Joseph-Scollard Hall C.S.S. |
| NOSSA #2 | Chippewa S.S. |
| ROPSSAA | St. Marcellinus C.S.S. |
| SOSSA #1 | Westmount Secondary School |
| SOSSA #2 | Eden High School |
| SWOSSAA | Ursuline College |
| TDCAA | Neil McNeil H.S. |
| TDSSAA | Monarch Park C.I. |
| WOSSAA | A.B. Lucas S.S. |
| YRAA | Hodan Nalayeh Secondary School |