Altenstadt is a district of Feldkirch, a city in the westernmost Austrian state of Vorarlberg.

Other districts of Feldkirch are Gisingen, Levis, Nofels, Tisis and Tosters.

In Altenstadt is the biggest and most important school of Feldkirch.

The station is served irregularly by the S2 service of Vorarlberg S-Bahn.

In the East of Altenstadt is the 751 m (2,464 ft) high hill Amberg.