The River Dever is a river /ˈdiːvər/ in the English county of Hampshire. It is a tributary of the River Test.
The river rises alongside the A33 at around grid reference SU535402 and flows west through the villages of Micheldever, Weston Colley, Stoke Charity, Wonston, Sutton Scotney, Upper and Lower Bullington, Barton Stacey, and flows into the Test near Wherwell.
Coordinates: 51°09′31″N 1°14′11″W / 51.15856°N 1.23635°W