| Image Coa: | DEU Oldenbüttel COA.svg |
| Coordinates: | 54.1667°N 35°W |
| Image Plan: | Oldenbuettel in RD.png |
| State: | Schleswig-Holstein |
| District: | Rendsburg-Eckernförde |
| Amt: | Mittelholstein |
| Elevation: | 3 |
| Area: | 7.98 |
| Postal Code: | 25557 |
| Area Code: | 04872, 04332 |
| Licence: | RD |
| Gemeindeschlüssel: | 01 0 58 119 |
| Mayor: | Klaus Bock |
Oldenbüttel is a municipality in the district of Rendsburg-Eckernförde, in Schleswig-Holstein, Germany.