| Image Coa: | DEU Klein Wesenberg COA.svg |
| Coordinates: | 53.8133°N 10.5469°W |
| Image Plan: | Klein Wesenberg in OD.svg |
| State: | Schleswig-Holstein |
| District: | Stormarn |
| Amt: | Nordstormarn |
| Elevation: | 14 |
| Area: | 8.74 |
| Postal Code: | 23860 |
| Area Code: | 04533, 04539 |
| Licence: | OD |
| Gemeindeschlüssel: | 01 0 62 039 |
| Website: | www.amt- nordstormarn.de |
| Mayor: | Herbert David |
Klein Wesenberg is a municipality in the district of Stormarn, in Schleswig-Holstein, Germany.