| Lammer | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Austria |
| Subdivision Type2: | State |
| Subdivision Name2: | Salzburg |
| Source1 Location: | Southern Tennen Mountains |
| Mouth Location: | Near Golling into the Salzach |
| Custom Label: | References |
The Lammer is a river of Salzburg, Austria, a right tributary of the Salzach.
The Lammer rises in the Tennen Mountains and flows from east to west, joining with the Salzach at Golling an der Salzach. Its length is about . The river is known for its very clean water and is very popular for wild water sportsmen.