- St Boniface
- St Carmen of the Main
- St. Catharines
- Music in St. Catharines
- St Clair Balfour
- St Clair River
- St Croix River
- St David's Welsh Male Voice Choir
- St-Denis Theatre/Théâtre St-Denis
- St Elmo's Fire
- St-Eustache
- St Francis Xavier University
- St George B. Crozier
- St George's
- St. George's Society of Toronto