| Lambach | |
| Settlement Type: | Town |
| Pushpin Map: | Austria |
| Pushpin Mapsize: | 270 |
| Pushpin Map Caption: | Location within Austria |
| Coordinates: | 48.0944°N 13.8775°W |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Upper Austria |
| Subdivision Type2: | District |
| Subdivision Name2: | Wels-Land |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Petra Marischka |
| Elevation M: | 367 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Registration Plate: | WL |
| Postal Code Type: | Postal code |
| Postal Code: | 4650 |
| Area Code Type: | Area code |
| Area Code: | 07245 |
| Website: | www.lambach.ooe.gv.at |
Lambach (pronounced as /de/) is a market town in the Wels-Land district of the Austrian state of Upper Austria on the Ager and Traun Rivers. A major stop on the salt trade, it is the site of the Lambach Abbey, built around 1056. Notable alumnus from the local elementary school is Adolf Hitler, who attended the establishment in the 1890s.
The famous Abbey of Lambach was founded in 1056 by bishop Adalbero of Würzburg.