| Altenberge | |
| Type: | Gemeinde |
| Image Coa: | DEU Altenberge COA.svg |
| Coordinates: | 52.0458°N 7.4653°W |
| Image Plan: | Altenberge in ST.svg |
| State: | North Rhine-Westphalia |
| Region: | Münster |
| District: | Steinfurt |
| Elevation: | 79 |
| Area: | 62.96 |
| Postal Code: | 48341 |
| Area Code: | 02505 |
| Licence: | ST, BF, TE |
| Gemeindeschlüssel: | 05 5 66 004 |
| Website: | www.altenberge.de |
| Mayor: | Karl Reinke[1] |
| Leader Term: | 2020 - 25 |
| Party: | Greens |
Altenberge (Westphalian: Ollenbiärg) is a municipality in the district of Steinfurt, in North Rhine-Westphalia, Germany. It is situated approximately 15 km south-east of Steinfurt and 15 km north-west of Münster.
The machine manufacturers Schmitz and Wesseler were founded in Altenberge.