| Image Coa: | DEU Grettstadt (a) COA.svg |
| Coordinates: | 49.9833°N 29°W |
| Image Plan: | Grettstadt in SW.svg |
| State: | Bavaria |
| Region: | Unterfranken |
| District: | Schweinfurt |
| Elevation: | 232 |
| Area: | 34.93 |
| Postal Code: | 97508 |
| Area Code: | 09729 |
| Licence: | SW |
| Gemeindeschlüssel: | 09 6 78 138 |
| Website: | www.grettstadt.de |
| Mayor: | Jens Machnow[1] |
| Leader Term: | 2022 - 28 |
| Party: | CSU |
Grettstadt is a municipality in the district of Schweinfurt in Bavaria, Germany. It consists of the following villages: Dürrfeld, Grettstadt, Obereuerheim, Untereuerheim.