| Image Coa: | Wappen der Gemeinde Gelenau im Erzgebirge.svg |
| Coordinates: | 50.7114°N 12.9653°W |
| Image Plan: | Gelenau-Erzgeb. in ERZ.png |
| State: | Sachsen |
| District: | Erzgebirgskreis |
| Elevation: | 513 |
| Area: | 21.11 |
| Postal Code: | 09423 |
| Area Code: | 037297 |
| Licence: | ERZ, ANA, ASZ, AU, MAB, MEK, STL, SZB, ZP |
| Gemeindeschlüssel: | 14521200 |
| Website: | www.gelenau.de |
| Mayor: | Knut Schreiter[1] |
| Leader Term: | 2022 - 29 |
| Party: | CDU |
Gelenau is a municipality in the district of Erzgebirgskreis, in Saxony, Germany.