The Stubai Alps (Ger. Stubaier Alpen) is a mountain range in the Central Eastern Alps of Europe. It is named after the Stubaital valley to its east. It is located southwest of Innsbruck, Austria, and several summits of the range form part of Austria's border with Italy. The range is bounded by the Inn River valley to the north; the Sill River valley (Wipptal) and the Brenner Pass to the east (separating it from the Zillertal Alps); the Ötztal and Timmelsjoch to the west (separating it from the Ötztal Alps), and to the south by tributaries of the Passer River and Eisack.