- Gaston Ouellet
- Ouimet Canyon Provincial Park
- Ounanguissé
- Our Best and Brightest, Now Forgotten
- Our Dying Seas
- Our Health Care Delusion
- Our Home and Native Tongue
- Our Lady Peace
- Our Lady Peace
- Our Orchestral One-night Stands
- Our Universities Can Be Smarter: Ambitious Plan for Fixing Our Schools
- Our Upper House of Ill Repute
- Out of the Suburbs
- Outlook
- Outremont
