| Image Coa: | DE-ST 15-0-85-125 Gross Quenstedt COA.png |
| Coordinates: | 51.9281°N 11.1081°W |
| Image Plan: | Groß Quenstedt in HZ.png |
| State: | Sachsen-Anhalt |
| District: | Harz |
| Verbandsgemeinde: | Vorharz |
| Elevation: | 95 |
| Area: | 15.65 |
| Postal Code: | 38822 |
| Area Code: | 039424 |
| Licence: | HZ |
| Gemeindeschlüssel: | 15 0 85 125 |
| Website: | www.bode-holtemme.de |
| Mayor: | Meinhardt Stadler[1] |
| Leader Term: | 2018 - 25 |
Groß Quenstedt is a municipality in the district of Harz, in Saxony-Anhalt, Germany.