| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| O'Brian Bay | city | Province of British Columbia | Canada | 50.9166667 | -126.8666667 | 88 | 11 |
| Oak Bay | city | Province of British Columbia | Canada | 48.4333333 | -123.3166667 | 16 | 98285 |
| Ocean Falls | city | Province of British Columbia | Canada | 52.35 | -127.7 | 305 | 5 |
| Ochiltree | city | Province of British Columbia | Canada | 52.2333333 | -121.8 | 3044 | 117 |
| Okanagan | city | Province of British Columbia | Canada | 50.3666667 | -119.35 | 1804 | 1015 |
| Okanagan Landing | city | Province of British Columbia | Canada | 50.2333333 | -119.3666667 | 1384 | 15858 |
| Okanogan | city | Province of British Columbia | Canada | 50.3666667 | -119.35 | 1804 | 1015 |
| Old Fort | city | Province of British Columbia | Canada | 55.05 | -126.3166667 | 2460 | 23 |
| Old Hogem | city | Province of British Columbia | Canada | 55.7666667 | -125.95 | 5213 | 14 |
| Oliver | city | Province of British Columbia | Canada | 49.1833333 | -119.55 | 997 | 4626 |
| One Hundred Fifty Mile House | city | Province of British Columbia | Canada | 52.1166667 | -121.9333333 | 2349 | 201 |
| One Hundred Mile House | city | Province of British Columbia | Canada | 51.65 | -121.2833333 | 3008 | 1302 |
| Oona River | city | Province of British Columbia | Canada | 53.95 | -130.25 | 3 | 0 |
| Ootischenia | city | Province of British Columbia | Canada | 49.2833333 | -117.6166667 | 2982 | 3991 |
| Ootsa Lake | city | Province of British Columbia | Canada | 53.7833333 | -126.0333333 | 2929 | 10 |
| Osland | city | Province of British Columbia | Canada | 54.1333333 | -130.1666667 | 0 | 67 |
| Osoyoos | city | Province of British Columbia | Canada | 49.0333333 | -119.4666667 | 918 | 4302 |
| Oyama | city | Province of British Columbia | Canada | 50.1166667 | -119.3833333 | 1286 | 5946 |
| OʼBrian Bay | city | Province of British Columbia | Canada | 50.9166667 | -126.8666667 | 88 | 11 |