| Nenndorf | |
| Coordinates: | 53.5667°N 41°W |
| Image Plan: | Nenndorf in WTM.svg |
| State: | Niedersachsen |
| District: | Wittmund |
| Samtgemeinde: | Holtriem |
| Elevation: | 6 |
| Area: | 6.86 |
| Postal Code: | 26556 |
| Area Code: | 0 49 75 |
| Licence: | WTM |
| Gemeindeschlüssel: | 03 4 62 009 |
| Mayor: | Erwin Niehuisen |
Nenndorf is a municipality in the district of Wittmund, in Lower Saxony, Germany.