| Type: | Stadt |
| Ronneburg | |
| Image Coa: | Wappen Ronneburg (Thüringen).png |
| Coordinates: | 50.8636°N 12.1808°W |
| Image Plan: | Ronneburg in GRZ.png |
| State: | Thüringen |
| District: | Greiz |
| Elevation: | 280 |
| Area: | 19.18 |
| Postal Code: | 07580 |
| Area Code: | 036602 |
| Licence: | GRZ |
| Gemeindeschlüssel: | 16 0 76 061 |
| Divisions: | 4 |
| Website: | www.ronneburg.de |
| Mayor: | André Rüderisch[1] |
| Leader Term: | 2024 - 30 |
Ronneburg (pronounced as /de/) is a town in the district of Greiz, in Thuringia, Germany. It is situated 7 km east of Gera.
Within the German Empire (1871–1918), Ronneburg was part of the Duchy of Saxe-Altenburg.