| Sempt | |
| Mouth Location: | Mittlere-Isar-Kanal |
| Mouth Coordinates: | 48.4945°N 12.0036°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
| Subdivision Name2: | Bavaria |
| Length: | 55.1km (34.2miles) |
| Basin Size: | 444km2 |
Sempt is a river of Bavaria, Germany. It flows into the Mittlere-Isar-Kanal, which is connected with the Isar, west of Eching.