| Fuhlensee | |
| Location: | Holsteinische Schweiz, Schleswig-Holstein |
| Pushpin Map: | Schleswig-Holstein |
| Coords: | 54.1894°N 10.315°W |
| Inflow: | Schwentine |
| Outflow: | Schwentine |
| Basin Countries: | Germany |
| Area: | 0.14km2 |
| Max-Depth: | 6m (20feet) |
| Elevation: | 20m (70feet) |
Fuhlensee is a lake in Holstein Switzerland, in the North German state of Schleswig-Holstein. It lies on the River Schwentine between the Kronsee (upstream) and the Lanker See (downstream), south of Wahlstorf Manor House. It has a surface area of 0.14 km², is up to 6 metres deep and has an elevation of about .