| Horloff | |
| Mouth Location: | Nidda |
| Mouth Coordinates: | 50.3281°N 8.8681°W |
| Subdivision Type1: | Country |
| Length: | 44.5km (27.7miles) |
| Basin Size: | 279km2 |
The Horloff is a river of Hesse, Germany. This 44.5 km long river passes through Hungen and Reichelsheim, and flows into the Nidda on the right bank in Florstadt.