| Hor | |
| Pushpin Map: | United Kingdom Norfolk |
| Pushpin Map Caption: | Location within Norfolk |
| Subdivision Type1: | Country |
| Subdivision Name1: | England |
| Subdivision Type2: | State |
| Subdivision Name2: | Norfolk |
| Subdivision Type3: | Region |
| Subdivision Name3: | East of England |
| Subdivision Type4: | District |
| Subdivision Name4: | Broadland |
| Length: | 13.3km (08.3miles) |
| Source1: | Spring in the churchyard of St Margaret's Church |
| Source1 Location: | Felthorpe |
| Source1 Coordinates: | 52.7103°N 1.2104°W |
| Source1 Elevation: | 34m (112feet) |
| Mouth: | River Bure |
| Mouth Location: | west of Wroxham |
| Mouth Coordinates: | 52.7039°N 1.3789°W |
| River System: | River Bure |
| Extra: | watermills Horsham St Faith Horsford |
The River Hor is a short river in the county of Norfolk, England. It runs 13.3km (08.3miles) east from its source near Felthorpe to its confluence with the River Bure near Wroxham.[1]
The name of the river is probably a back-formation from the name of villages that it flows through. The village of Horsford has a name meaning "ford that horses can cross", so the river's name may be formed from that.[2]