The Herrensee is a small lake on the northwestern edge of the old town (Altstadt) of Waren (Müritz) in the district of Mecklenburgische Seenplatte in the German state of Mecklenburg-Western Pomerania.

The originally almost-circular lake was slightly enlarged on its southern shore during the construction of the Information and Nature Experience Centre of Müritzeum.

The lake contains several small bush-covered islets that are used as nesting sites by water fowl.

The Herrensee lies on the edge of a small park and there is a nature trail running around it.

It gives its name to the bridge that divides the park, the Herrensee Bridge (Herrenseebrücke), which runs over the B 192 federal road and the Lloyd Railway and links the Old Town to the quarter of Waren-Nord.