- Orpheum Theatre
- Orpheus Choir of Toronto
- Orpheus Club
- Orpheus Club of Halifax
- Orpheus Musical Theatre Society of Ottawa
- Orr, Hugh
- ORTECH International
- Orton, George
- Orval Prophet
- Orville Fisher (Obituary)
- Orville J.w. Shugg
- Oryx and Crake
- Os-Ke-Non-Ton
- Osborne, Stanley
- Oscar Baker III
- Oscar Buzz for Canadian Director Denis Villeneuve
- Oscar Cahén
- Oscar Cahén (Profile)
- Oscar Peterson
- Oscar Peterson (Obituary)
