1. O'Donnell, Ontario, Canada
2. Oakville, Ontario, Canada
3. Oakwood, Ontario, Canada
4. Oconto, Ontario, Canada
5. Odessa, Ontario, Canada
6. Oliver Paipoonge, Ontario, Canada
7. Ompah, Ontario, Canada
|
|
8. Ontario, Canada
9. Orangeville, Ontario, Canada
10. Orillia, Ontario, Canada
11. Oro Station, Ontario, Canada
12. Orwell, Ontario, Canada
13. Osgoode Township, Ontario, Canada
14. Oshawa, Ontario, Canada (2)
|
|
15. Otonabee–South Monaghan Township, Ontario, Canada (2)
16. Ottawa Municipality, Ontario, Canada (18)
17. Ottawa, Ontario, Canada (7)
18. Owen Sound, Ontario, Canada (2)
19. Oxford County, Ontario, Canada (2)
20. Oxford Mills, Ontario, Canada
|