The River Wansbeck runs through the county of Northumberland, England. It rises above Sweethope Lough on the edge of Fourlaws Forest in the area known locally as The Wanneys (Great Wanney Crag, Little Wanney Crag; thus the "Wanneys Beck"); runs through the town of Ashington before discharging into the North Sea at Sandy Bay near Newbiggin-by-the-Sea.
The River flows through the village of Kirkwhelpington, Hartburn, where the tributary Hart Burn joins, the village of Mitford, where the River Font joins, and the town of Morpeth.