| Image Coa: | Wappen Niendorf (Stecknitz).svg |
| Coordinates: | 53.5833°N 46°W |
| Image Plan: | Niendorf Stecknitz in RZ.svg |
| State: | Schleswig-Holstein |
| District: | Herzogtum Lauenburg |
| Amt: | Breitenfelde |
| Elevation: | 69 |
| Area: | 8.41 |
| Postal Code: | 23881 |
| Area Code: | 04156 |
| Licence: | RZ |
| Gemeindeschlüssel: | 01 0 53 095 |
| Website: | www.amt- breitenfelde.de |
| Mayor: | Friedhelm Wenck |
Niendorf an der Stecknitz is a municipality in the district of Lauenburg, in Schleswig-Holstein, Germany.