| Ramsauer Ache | |
| Mouth Coordinates: | 47.6257°N 13.0002°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
| Length: | 21.5km (13.4miles) |
Ramsauer Ache (in its upper course: Klausbach) is a river of Bavaria, Germany. At its confluence with the Königsseer Ache in Berchtesgaden, the Berchtesgadener Ache is formed.