Chiavenna or Claven; archaic German: Cläven or Kleven) is a comune (municipality) in the Province of Sondrio in the northern Italian region of Lombardy. It is the centre of the Alpine Valchiavenna region. The historic town is a member of the Cittaslow movement.

The Splügen Pass is an Alpine mountain pass of the Lepontine Alps. It connects the Swiss, Grisonian Splügen 5 kilometres (3.1 mi) to the north 675 metres (2,215 ft) below the pass with the Italian Chiavenna 21 kilometres (13 mi) to the south at the end of the Valle San Giacomo 1,789 metres (5,869 ft) below the pass.