| Fischa | |
| Mouth Coordinates: | 48.1196°N 16.6771°W |
| Subdivision Type1: | Country |
| Length Km: | 49.5 |
| Basin Size Km2: | 563 |
The Fischa (pronounced as /de/) is a river of Lower Austria. It is a right tributary of the Danube near the town Fischamend. Its drainage basin is .[1]