| Harper's Brook | |
| Pushpin Map: | United Kingdom Northamptonshire |
| Pushpin Map Caption: | Location of the river mouth in Northamptonshire |
| Subdivision Type1: | Sovereign State |
| Subdivision Name1: | United Kingdom |
| Subdivision Type2: | Country |
| Subdivision Name2: | England |
| Subdivision Type3: | County |
| Subdivision Name3: | Northamptonshire |
| Source1 Location: | Desborough |
| Source1 Coordinates: | 52.4605°N -0.814°W |
| Source1 Elevation: | 137m (449feet) |
| Mouth: | River Nene |
| Mouth Location: | Aldwinckle |
| Mouth Coordinates: | 52.4286°N -0.5064°W |
| Mouth Elevation: | 28m (92feet) |
| River System: | River Nene |
| Basin Size: | 73.26km2 |
Harper's Brook is a tributary of the River Nene which runs through Northamptonshire.[1]
According to sources (ordnance survey sheet 141) it rises to the North of Desborough and meanders through the north of the county of Northamptonshire, passing through the town of Corby and on until it joins the River Nene at Aldwinckle, just north of Thrapston.