| Altenstadt | |
| Settlement Type: | City district |
| Pushpin Map: | Austria Vorarlberg#Austria |
| Pushpin Mapsize: | 270 |
| Pushpin Map Caption: | Location within Vorarlberg##Location within Austria |
| Pushpin Relief: | 1 |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Vorarlberg |
| Subdivision Type2: | District |
| Subdivision Name2: | Feldkirch |
| Parts Style: | para |
| Elevation M: | 446 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code: | 6800 |
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 church was removed in the 1960s. Next to the church is a big abbey.
Altenstadt railway station is an intermediate stop on the Feldkirch–Buchs railway line to Liechtenstein and Switzerland. The station is served irregularly by the S2 service of Vorarlberg S-Bahn.
In the East of Altenstadt is the high hill Amberg. South of it is the high Ardetzenberg.