O
- Oakbank
- Oakner
- Oakpoint Marine
- Obed
- Ogilvie River
- Oka
- Okanagan Centre
- Okotoks
- Old Crow
- Old Crow RCS
- Olds
- Oliver
- Oliver STP
- Onefour
- Ootsa L Skins L Spillway
- Orangeville
- Orillia/Brain
- Ormstown
- Oshawa
- Osler 6 N
- Osoyoos
- Osoyoos West
- Ottawa
- Ottawa Macdonald-Cartier Int'l
- Otter Falls
- Otter Lakes
- Outlook
- Owen Sound
- Oxbow
- Oyen Cappon
- Oyen Cara
