Ondarroa
| Ondarroa | |
|---|---|
| Coordinates: 43°19′19″N 2°25′10″W / 43.32194°N 2.41944°W | |
| Country | Spain | 
| Autonomous community | Basque Country | 
| Province | Biscay | 
| Comarca | Lea-Artibai | 
| Government | |
| • Mayor | Urtza Alkorta Arrizabalaga (EH Bildu) | 
| Area | |
|  • Total | 3.6 km2 (1.4 sq mi) | 
| Population  (2018) | |
|  • Total | 8,397 | 
| • Density | 2,300/km2 (6,000/sq mi) | 
| Demonym | Ondarrutarra | 
| Time zone | UTC+1 (CET) | 
| Postal code | 48700 | 
| Website | Official website | 
Ondarroa is a town and municipality located in the province of Biscay, in the autonomous community of the Basque Autonomous Community, northern Spain.