Guirguillano is a town and municipality in northern Spain. It is located in the province and autonomous community of Navarre.
As a municipality, Guirguillano is one of the many small administrative units that make up Navarre, a region of northern Spain that borders France. The town serves as the administrative centre of the municipality that shares its name.
Navarre is an autonomous community with its own regional institutions, and its municipalities form the lowest tier of local government within it. Guirguillano is therefore governed as part of this structure, alongside the other towns and municipalities of the province.