| Elmenhorst | |
| Image Coa: | DEU Elmenhorst (Stormarn) COA.svg |
| Coordinates: | 53.7667°N 26°W |
| Image Plan: | Elmenhorst in OD.svg |
| State: | Schleswig-Holstein |
| District: | Stormarn |
| Amt: | Bargteheide-Land |
| Elevation: | 30 |
| Area: | 14.92 |
| Postal Code: | 23869 |
| Area Code: | 04532 |
| Licence: | OD |
| Gemeindeschlüssel: | 01 0 62 016 |
| Website: | www.bargteheide- land.de |
| Mayor: | Uwe Prescher |
Elmenhorst is a municipality in the district of Stormarn, in Schleswig-Holstein, Germany.