| Type: | Ortsteil |
| Municipality: | Grammetal |
| Image Coa: | Wappen Troistedt.svg |
| Coordinates: | 50.9389°N 11.245°W |
| State: | Thuringia |
| District: | Weimarer Land |
| Elevation: | 354 |
| Area: | 9.28 |
| Population: | 188 |
| Stand: | 2018-12-31 |
| Postal Code: | 99438 |
| Area Code: | 03643 |
| Licence: | AP |
Troistedt is a village and a former municipality in the Weimarer Land district of Thuringia, Germany. Since December 2019, it is part of the municipality Grammetal.