| Image Coa: | Wappen Seddiner See.png |
| Coordinates: | 52.2667°N 13.0167°W |
| Image Plan: | Seddiner See in PM.png |
| State: | Brandenburg |
| District: | Potsdam-Mittelmark |
| Elevation: | 49 |
| Area: | 24.03 |
| Postal Code: | 14554 |
| Area Code: | 033205 |
| Licence: | PM |
| Gemeindeschlüssel: | 12 0 69 596 |
| Divisions: | 3 Ortsteile |
| Website: | www.seddiner-see.de |
| Mayor: | Carina Simmes[1] |
| Leader Term: | 2022 - 30 |
Seddiner See is a municipality in the Potsdam-Mittelmark district, in Brandenburg, Germany.