| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oía | city | Notio Aigaio | Greece | 36.46 | 25.38 | 830 | 2041 |
| Oíkos | city | Lefkosia | Cyprus | 35.00 | 32.83 | 1955 | 2098 |
| Oíon | city | Attiki | Greece | 38.13 | 23.86 | 1669 | 71268 |
| Oítilon | city | Peloponnisos | Greece | 36.71 | 22.39 | 121 | 1515 |