Amtssee
{{Infobox lake
| name = Amtssee
| image = 17-05-23-Amtssee und Kloster Chorin-RalfR RR70856.jpg
| caption =
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| location = Schorfheide-Chorin Biosphere Reserve, Brandenburg, Germany
| coords = {{coord|52|53|34|N|13|53|1|E|region:DE-BB_type:waterbody_source:dewiki|display=inline,title}}
| type =
|pushpin_map=Brandenburg
| inflow = Nettelgraben
| outflow = Ragöse
| catchment =
| basin_countries = Germany
| length = ca. {{convert|600|m|abbr=on}}
| width = {{convert|400|m|abbr=on}}
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Amtssee is a lake in the Schorfheide-Chorin Biosphere Reserve in Brandenburg, Germany. It is located in the municipality of Chorin, Barnim district.
{{Brandenburg-geo-stub}}