| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| O'Brian Bay | city | British Columbia | Canada | 50.92 | -126.87 | 88 | 9 |
| Oak Bay | city | British Columbia | Canada | 48.43 | -123.32 | 16 | 103969 |
| Ocean Falls | city | British Columbia | Canada | 52.35 | -127.70 | 305 | 0 |
| Ochiltree | city | British Columbia | Canada | 52.23 | -121.80 | 3349 | 0 |
| Okanagan | city | British Columbia | Canada | 50.37 | -119.35 | 1804 | 597 |
| Okanagan Country | city | British Columbia | Canada | 50.37 | -119.35 | 1804 | 597 |
| Okanagan Landing | city | British Columbia | Canada | 50.23 | -119.37 | 1669 | 14474 |
| Okanagan Valley | city | British Columbia | Canada | 50.37 | -119.35 | 1804 | 597 |
| Okanogan | city | British Columbia | Canada | 50.37 | -119.35 | 1804 | 597 |
| Old Fort | city | British Columbia | Canada | 55.05 | -126.32 | 2509 | 0 |
| Old Hogem | city | British Columbia | Canada | 55.77 | -125.95 | 5213 | 0 |
| Oliver | city | British Columbia | Canada | 49.18 | -119.55 | 997 | 6424 |
| One Hundred Fifty Mile House | city | British Columbia | Canada | 52.12 | -121.93 | 2509 | 2055 |
| One Hundred Mile House | city | British Columbia | Canada | 51.65 | -121.28 | 3349 | 1503 |
| Oona River | city | British Columbia | Canada | 53.95 | -130.25 | 3 | 0 |
| Ootischenia | city | British Columbia | Canada | 49.28 | -117.62 | 3349 | 5552 |
| Ootsa Lake | city | British Columbia | Canada | 53.78 | -126.03 | 2929 | 0 |
| Osland | city | British Columbia | Canada | 54.13 | -130.17 | 0 | 25 |
| Osoyoos | city | British Columbia | Canada | 49.03 | -119.47 | 918 | 6471 |
| Oyama | city | British Columbia | Canada | 50.12 | -119.38 | 1669 | 3644 |
| O’Brian Bay | city | British Columbia | Canada | 50.92 | -126.87 | 88 | 9 |