The Urbasa Range (Urbasa mendilerroa in Basque and Sierra de Urbasa in Spanish) is a mountain range of western Navarre, Spain, part of the Basque Mountains.
Its highest point is the 1,183-metre-high Baiza.
Urbasa is a karstic range where numerous nummulites fossils have been found.
[1] Together with the neighboring Andia range, Urbasa is part of the Urbasa-Andia Natural Park.