River Allen, Northumberland

Coordinates: 54°56′53″N 2°19′19″W / 54.948°N 2.322°W / 54.948; -2.322

River Allen
River Allen  River Allen shown within Northumberland
OS grid reference	NY795615
List of places UK England Northumberland

The River Allen is a river in the English county of Northumberland.

The Allen is a tributary of the River South Tyne. It gives its name to Allendale.