Ontario Schools
- St Aloysius Gonzaga Secondary School
- St Andre Bessette Catholic Secondary School
- St Andrew Catholic School
- St Andrew's College
- St Anne Secondary School
- St Anne's Catholic Secondary School
- St Anne’s Indian Residential School
- St Anselm's Catholic School
- St Augustine Catholic High School
- St Augustine Catholic Secondary School
- St Augustine's Seminary
- St Barbara Elementary School
- St Basil The Great College School
- St Benedict Catholic Secondary School
- St Benedict Catholic Secondary School
- St Bernadette Catholic School
- St Catharines Collegiate
- St Catherine Of Siena Catholic School
- St Charles College
- St Clair Catholic District School Board
- St Clair College
- St Clair Secondary School
- St Clement's School
- St David Catholic Secondary School
- St Dominic Savio Catholic School
- St Edmund Campion Catholic School
- St Edmund Campion Secondary School
- St Elizabeth Catholic High School
- St Elizabeth Seton Catholic School
- St Francis Catholic Secondary School
- St Francis Xavier Catholic High School
- St Francis Xavier Catholic High School, Ontario
- St Francis Xavier Catholic Secondary School
- St Francis Xavier Secondary School
- St Ignatius High School
- St Ignatius Of Loyola Catholic School
- St Ignatius Of Loyola Secondary School
- St James Catholic School
- St Jean De Brebeuf Catholic High School
- St Jean De Brébeuf Catholic Secondary School
- St Jerome's University
- St Joachim Catholic School
- St Joan Of Arc Catholic Academy
- St Joan Of Arc Catholic High School
- St Joan Of Arc Catholic Secondary School
- St Joan Of Arc High School
- St John Catholic High School
- St John Henry Newman Catholic High School
- St John Henry Newman Catholic Secondary School
- St John Paul Ii Catholic Secondary School
- St John School
- St John's College
- St John's Indian Residential School
- St John's Kilmarnock School
- St Joseph High School
- St Joseph Secondary School
- St Joseph's Catholic High School
- St Joseph's College School
- St Joseph's High School
- St Joseph's High School
- St Joseph's High School
- St Joseph's Intermediate And Commercial School
- St Joseph's Morrow Park Catholic Secondary School
- St Joseph's Secondary School
- St Joseph Scollard Hall Secondary School
- St Jude Catholic School
- St Kateri Tekakwitha Catholic Secondary School
- St Lawrence College
- St Lawrence Secondary School
- St Louis Catholic Elementary School, Mimico
- St Luke Catholic High School
- St Luke Catholic Learning Centre
- St Luke Elementary School
- St Marcellinus Secondary School
- St Marguerite D'youville Secondary School
- St Maria Goretti Catholic School
- St Mark Catholic High School
- St Martin Secondary School
- St Mary Catholic High School
- St Mary Catholic Secondary School
- St Mary Catholic Secondary School
- St Mary's Catholic High School
- St Mary's Catholic Secondary School
- St Mary's Catholic Secondary School, Cobourg
- St Mary's College, Brockville
- St Mary's College, Sault Ste Marie
- St Mary's High School
- St Mary's High School
- St Marys Distict Collegiate And Vocational Institute
- St Matthew Catholic Secondary School
- St Matthew High School
- St Matthew The Evangelist Catholic School
- St Maximillian Kolbe Catholic High School
- St Michael Catholic Academy
- St Michael Catholic Secondary School
- St Michael Catholic Secondary School
- St Michael High School
- St Michael's Choir School
- St Michael's College Faculty Of Theology
- St Michael's College School