Bernau am Chiemsee (German pronunciation: [bɛʁˈnaʊ ʔam ˈkiːmzeː] ^ⓘ, lit. 'Bernau on the Chiemsee'; officially Bernau a.Chiemsee) is a municipality in the district of Rosenheim in Germany on the Lake Chiemsee, and a Luftkurort.

The Luftkurort Bernau lies in the Chiemgau area at the south-western bank of the lake Chiemsee. Bernau is close to the Bundesautobahn 8 (A 8) Munich – Salzburg and the Rosenheim–Salzburg railway. In the south are the Chiemgau Alps (German: Chiemgauer Alpen) with the prominent summit, the Kampenwand. In the east is vast bogland, where peat used to be harvested in large quantities. An old rail station for the transportation of peat in the bog area Kendlmühlfilzen reminds of these times. Rosenheim is 24 km away, Munich 83 km, Kufstein 35 km, Traunstein 26 km, Salzburg 58 km and Reit im Winkl 25 km.

Bernau has a bathing beach, boat hire as well as mooring for the Chiemsee-Schifffahrt at its shore. It is possible to reach the island Herreninsel directly from here.

The cycling route (Uferrundweg) around the lake Chiemsee also passes through one of Bernau's districts called Felden.

Neighbouring municipalities clockwise are Übersee, Grassau, Aschau, Frasdorf and Prien.

There are the following land plots of the municipality, also called Gemarkungen: Bernau a. Chiemsee, Hittenkirchen. The municipality Bernau am Chiemsee has 38 districts:

Bernau am Chiemsee belonged to the count Grafen von Preysing. However, it was also part of the Electorate of Bavaria. Bernau was a part of the rule of Hohenaschau which was equipped with the right of Blutgerichtsbarkeit. Today's municipality came into being in the course of the administrative reforms in Bavaria by the edict of 1818 (Gemeindeedikt von 1818).

During the time of ancient rome Bernau was a popular resort for soldiers because of its convenient and healthy location. The outlines of a villa rustica were found here. This indicates the existence of a Roman bath. A Roman tombstone was also found.