Oñati is a town located in the province of Gipuzkoa, in the autonomous community of the Basque Country, in the north of Spain. It has a population of approximately 10,500 and lies in a valley in the center of the Basque country. It lies about 40 kilometres south of the Bay of Biscay and is about 236 metres above sea level. The name is Basque and translates roughly as "place of many hills", reflecting the landscape of the area. The town is surrounded on three sides by green mountains on the southern side by the Aloña limestone formation.

Gipuzkoa is a province of Spain and a historical territory of the autonomous community of the Basque Country. Its capital city is Donostia-San Sebastián. Gipuzkoa shares borders with the French department of Pyrénées-Atlantiques at the northeast, with the province and autonomous community of Navarre at east, Biscay at west, Álava at southwest and the Bay of Biscay to its north. It is located at the easternmost extreme of the Cantabric Sea, in the Bay of Biscay. It has 66 kilometres of coast land.