The Douve or Ouve is a river, 78.6 km in length, which rises in the commune of Tollevast, near Cherbourg in the department of Manche. Ouve is considered its old name: Ouve appears to have been misspelled over the course of time as "Douve river" and then as "River of the Douve". The French name for this watercourse is la Douve.