The River Tove is a river in England, a tributary of the River Great Ouse. Rising in Northamptonshire about a mile north of Greatworth, it flows for about 15 miles (24 km) north and east of the town of Towcester near Bury Mount before meeting the Ouse south-east of Cosgrove just north of Milton Keynes. Its final 5 miles (8 km) form part of the border between Northamptonshire and Buckinghamshire, running alongside the Grand Union Canal. The river ultimately flows into the North Sea.