The Alpine foothills, or Prealps (German: Voralpen; French: Préalpes; Italian: Prealpi; Slovene: Predalpe) can refer generally to any foothills at the base of the European Alps. They are the transition zone between the High Alps to the Swiss Plateau and the Bavarian Alpine Foreland in the north, as well as to the Pannonian Basin (Alpokalja) in the east, the Padan Plain in the south and the Rhone Valley in the west.
The Alpine foothills comprise:
- The French Prealps
- The Swiss Prealps
- The Northern Prealps, part of the Northern Limestone Alps:
- The Southeastern Prealps, borderline of the Alps to the Pannonian Basin in Austria and Slovenia:
- The Southern or Italian Prealps, usually divided into:
- Operation Zone of the Alpine Foothills – a territory in Italy occupied by Nazi Germany in World War II