The Willow Brook is a tributary of the River Nene. Its entire course is in the English county of Northamptonshire.

This article does not cite any sources. (December 2009)

Willow Brook
Willow Brook near Fotheringhay
Location of the mouth within Northamptonshire
Location
Country	England
County	Northamptonshire
Physical characteristics
Source
• location	Corby
Mouth	River Nene
• location	Fotheringhay
• coordinates	52.532649°N 0.408065°W / 52.532649; -0.408065
• elevation	17 m (56 ft)
Basin size	96.2 km2 (37.1 sq mi)
Basin features
River system	River Nene
Tributaries
• left	Gretton Brook

The Willow Brook rises north of Corby where, until 1980, water was extracted for use at Corby Steelworks. It then flows through or near Deene, Bulwick, Blatherwycke, King's Cliffe and Woodnewton and joins the Nene downstream from Fotheringhay.