- Order of Manitoba
- Order of Military Merit
- Order of New Brunswick
- Order of Newfoundland and Labrador
- Order of Nova Scotia
- Order of Ontario
- Order of Prince Edward Island
- Order of St John
- Ordre de Bon Temps
- Ordre de Jacques-Cartier
- Oregon Treaty
- Orest Semchishen
- Orff Approach
- Orford Arts Centre/Centre d'arts Orford
- Orford String Quartet
