Starnberg (German pronunciation: [ˈʃtaʁnbɛʁk]) is a Landkreis (district) in the southern part of Bavaria, Germany.

Neighboring districts are (from the north clockwise) Fürstenfeldbruck, Munich, Bad Tölz-Wolfratshausen, Weilheim-Schongau and Landsberg.

The main geographic feature of the district are the five lakes – the Starnberger See and Ammersee, as well as the smaller Weßlinger See, Wörthsee and Pilsensee.

The coat of arms show the Bavarian diamonds in the background, with a yellow lion and eagle in front.

The two animals were the symbol of the Counts of Andechs-Meranien, who ruled the area until 1248.