| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| O'Connell Bridge | city | Kerry | Ireland | 52.18 | -9.54 | 239 | 1922 |
| Oaghley | city | Kerry | Ireland | 52.45 | -9.57 | 216 | 2007 |
| Ochtaibh | city | Kerry | Ireland | 51.86 | -10.07 | 830 | 417 |
| Oghermong | city | Kerry | Ireland | 51.91 | -10.25 | 36 | 1798 |
| Oileán Ciarraí | city | Kerry | Ireland | 52.23 | -9.47 | 95 | 4391 |
| Oughtiv | city | Kerry | Ireland | 51.86 | -10.07 | 830 | 417 |
| Owgarrif Bridge | city | Kerry | Ireland | 52.02 | -9.45 | 308 | 3431 |
| Ownagarry Bridge | city | Kerry | Ireland | 52.08 | -9.77 | 62 | 4291 |
| Owroe Bridge | city | Kerry | Ireland | 51.93 | -10.02 | 324 | 311 |
| O’Connell Bridge | city | Kerry | Ireland | 52.18 | -9.54 | 239 | 1922 |