| Ottenstein | |
| Coordinates: | 51.95°N 33°W |
| Image Plan: | Ottenstein in HOL.svg |
| State: | Niedersachsen |
| District: | Holzminden |
| Samtgemeinde: | Bodenwerder-Polle |
| Elevation: | 275 |
| Area: | 13.59 |
| Postal Code: | 31868 |
| Area Code: | 05286 |
| Licence: | HOL |
| Gemeindeschlüssel: | 03 2 55 031 |
| Divisions: | 2 |
| Website: | www.ottensteiner-hochebene.de |
| Mayor: | Manfred Weiner |
| Party: | CDU |
Ottenstein is a municipality in the district of Holzminden, in Lower Saxony, Germany.[1]