| Image Coa: | DEU Querenhorst COA.svg |
| Coordinates: | 52.3333°N 68°W |
| Image Plan: | Querenhorst in HE.svg |
| State: | Niedersachsen |
| District: | Helmstedt |
| Samtgemeinde: | Grasleben |
| Elevation: | 112 |
| Area: | 4.78 |
| Postal Code: | 38368 |
| Area Code: | 05358 |
| Licence: | HE |
| Gemeindeschlüssel: | 03 1 54 016 |
| Website: | www.samtgemeinde-grasleben.de |
| Mayor: | Reinhard Beckmann |
Querenhorst is a municipality in the district of Helmstedt, in Lower Saxony, Germany.