| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oddstadhir | city | Iceland | 65.02 | -21.58 | 459 | 0 | |
| Oddstaðir | city | Iceland | 65.02 | -21.58 | 459 | 0 | |
| Olafsdalur | city | Iceland | 65.42 | -21.75 | 252 | 0 | |
| Ormsstadhir | city | Iceland | 65.18 | -22.42 | 131 | 0 | |
| Ormsstaðir | city | Iceland | 65.18 | -22.42 | 131 | 0 | |
| Orraholl | city | Iceland | 65.15 | -22.25 | 252 | 0 |