Havelsee (German pronunciation: [ˈhaːfl̩ˌzeː] ⓘ) is a town in the Potsdam-Mittelmark district, in Brandenburg, Germany.

It is situated on the river Havel, 12 km northwest of Brandenburg.

The Pritzerbe Ferry, a vehicular cable ferry, crosses the Havel between Havelsee and Kützkow.

The mayor of Havelsee since 2003 is Günther Noack, he was reelected in 2014 with 83,4 % of the votes.

This Brandenburg location article is a stub.