| Type: | Ortsteil |
| Town: | Neustadt an der Orla |
| Image Coa: | Wappen Knau.png |
| Coordinates: | 50.65°N 55°W |
| State: | Thüringen |
| District: | Saale-Orla-Kreis |
| Elevation: | 450 |
| Area: | 15.93 |
| Population: | 718 |
| Stand: | 2018-12-31 |
| Postal Code: | 07389 |
| Area Code: | 036484 |
| Website: | www.knau.de |
Knau is a village and a former municipality in the district Saale-Orla-Kreis, in Thuringia, Germany. The former municipality Bucha was merged into Knau in January 2019. Since December 2019, it is part of the town Neustadt an der Orla.