Nafarroa
| Nombre | Altitud | Zone | Ph. | |
|---|---|---|---|---|
 | Ontzanburu | 1282 | 17 | |
| Ordoiz | 547 | 5 | |
| Oregigaña | 1238 | 17 | |
| Orhi | 2017 | 74 | |
| Oritz | 556 | 4 | |
| Orlagatu | 1136 | 19 | |
| Orobeko Haitza | 846 | 21 | |
| Orraun | 1154 | 13 | |
| Ortxikasko | 977 | 10 | |
| Ortzantzurieta | 1567 | 23 | |
| Oso | 1338 | 19 | |
| Ososki | 763 | 9 | |
| Ostaita | 641 | 6 | |
| Otansur | 1076 | 10 | |
| Oteitzoiana | 685 | 37 | |
| Otolo | 778 | 14 | |
| Otsaketa | 983 | 8 | |
| Otsameaka | 814 | 19 | |
| Otsarte | 950 | 10 | |
| Otsogorrigaina | 1922 | 22 | |
| Otsondoa | 565 | 8 | |
| Otsopasaje | 720 | 6 | |
| Otxalanta | 645 | 5 | |
| Otxasko | 716 | 18 | |
| Ozin | 704 | 9 | |
| Ozpinarri | 1132 | 7 | |
| Paco Mayor | 829 | 7 | |
| Pagadi | 887 | Aranguren | 13 |
| Pagadiandieta | 836 | 9 | |
| Pagoaundi | 1029 | 4 |
