| Type: | Gemeinde |
| Adendorf | |
| Image Coa: | DEU Adendorf COA.svg |
| Coordinates: | 53.2833°N 37°W |
| Image Plan: | Adendorf in LG.svg |
| State: | Niedersachsen |
| District: | Lüneburg |
| Elevation: | 23 |
| Area: | 16.08 |
| Postal Code: | 21365 |
| Area Code: | 04131 |
| Licence: | LG |
| Gemeindeschlüssel: | 03 3 55 001 |
| Divisions: | 4 districts |
| Website: | www.adendorf.de |
| Mayor: | Thomas Maack[1] |
| Leader Term: | 2019 - 24 |
| Party: | SPD |
Adendorf (Northern Low Saxon: Adendörp) is a municipality in the district of Lüneburg, in Lower Saxony, Germany.
Adendorf is twinned with:
Saint-Romain-de-Colbosc, France, since 1987
Wągrowiec, Poland, since 2001