Andosilla is a town in the province and autonomous community of Navarra, in northern Spain. It lies within the broader Navarre region, which is located in the north of the country along the border with France.
As a Navarran municipality, Andosilla forms part of one of Spain's seventeen autonomous communities. Navarra is a single-province community, meaning the provincial and regional administrations cover the same territory, with its capital at Pamplona.