Waldsee is an eastern district of Freiburg im Breisgau, Baden-Württemberg, Germany, with a population of around 5,400 inhabitants. It is named after the local recreational area of the same name. It lies between the districts Wiehre and Oberau in the west and Littenweiler and Ebnet in the east. In the north and the south, it is bordered by the Dreisam Valley mountains. The Dreisam flows through Waldsee from the east to the west and forms the northern boundary of the residential development area here.