| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Oberbozen | city | Trentino-Sudtirol | Italy | 46.53 | 11.40 | 4189 | 31949 |
| Oberbozen - Soprabolzano | city | Trentino-Sudtirol | Italy | 46.53 | 11.40 | 4189 | 31949 |
| Oberinn | city | Trentino-Sudtirol | Italy | 46.55 | 11.40 | 4189 | 8863 |
| Oberinn - Auna di Sopra | city | Trentino-Sudtirol | Italy | 46.55 | 11.40 | 4189 | 8863 |
| Oberplanitzing | city | Trentino-Sudtirol | Italy | 46.43 | 11.25 | 1249 | 15910 |
| Oberplanitzing - Pianizza di Sopra | city | Trentino-Sudtirol | Italy | 46.43 | 11.25 | 1249 | 15910 |
| Oberplanken - Planca di sopra | city | Trentino-Sudtirol | Italy | 46.79 | 12.21 | 5331 | 1850 |
| Oberrasen | city | Trentino-Sudtirol | Italy | 46.79 | 12.06 | 4251 | 4008 |
| Oberrasen - Rasun di Sopra | city | Trentino-Sudtirol | Italy | 46.79 | 12.06 | 4251 | 4008 |
| Obersteiner | city | Trentino-Sudtirol | Italy | 46.90 | 11.68 | 4314 | 2268 |
| Obervierschach | city | Trentino-Sudtirol | Italy | 46.73 | 12.33 | 4537 | 2872 |
| Obervierschach - Versciaco di Sopra | city | Trentino-Sudtirol | Italy | 46.73 | 12.33 | 4537 | 2872 |
| Obervintl | city | Trentino-Sudtirol | Italy | 46.80 | 11.73 | 5029 | 2786 |
| Obervintl - Vandoies di Sopra | city | Trentino-Sudtirol | Italy | 46.80 | 11.73 | 5029 | 2786 |
| Olang - Valdaora | city | Trentino-Sudtirol | Italy | 46.77 | 12.03 | 3451 | 6897 |
| Ora | city | Trentino-Sudtirol | Italy | 46.35 | 11.30 | 1817 | 10825 |
| Oris | city | Trentino-Sudtirol | Italy | 46.63 | 10.65 | 3349 | 3619 |
| Ormanico | city | Trentino-Sudtirol | Italy | 46.17 | 11.83 | 3415 | 3420 |
| Ortisei | city | Trentino-Sudtirol | Italy | 46.57 | 11.67 | 5029 | 7491 |
| Ospedaletto | city | Trentino-Sudtirol | Italy | 46.05 | 11.55 | 1669 | 4930 |
| Osteria Alpina | city | Trentino-Sudtirol | Italy | 46.13 | 11.47 | 4189 | 3355 |
| Osteria Carlettani | city | Trentino-Sudtirol | Italy | 46.15 | 11.52 | 5124 | 3525 |
| Osteria Carlettini | city | Trentino-Sudtirol | Italy | 46.15 | 11.52 | 5124 | 3525 |