| PLACE NAME | TYPE |
| Ortuzarratua | vegetable garden |
| Ospitalea | shelter for the poor |
| Ospitaloste ortua | vegetable garden |
| Otabarra baserria (Tomastxikiena) | farmhouse |
| Otabarrasolo | cultivated land |
| Otadibaikosakona | gully |
| Otadizarra | mountain |
| Otadizarra basoa | mountain |
| Otalora jauregia | palace |
| Otamotzen pinudia | mountain |
