| Type: | Samtgemeinde |
| Ostheide | |
| Image Coa: | DEU Samtgemeinde Ostheide COA.svg |
| Coordinates: | 53.2333°N 41°W |
| State: | Lower Saxony |
| District: | Lüneburg |
| Area: | 129.78 |
| Postal Code: | 21397–21403 |
| Gemeindeschlüssel: | 033555406 |
| Licence: | LG |
| Divisions: | 6 municipalities |
| Website: | www.ostheide.de |
| Mayor: | Norbert Meyer[1] |
| Leader Term: | 2021 - 26 |
| Party: | SPD |
Ostheide is a Samtgemeinde ("collective municipality") in the district of Lüneburg, in Lower Saxony, Germany. It is situated approximately 8km (05miles) east of Lüneburg. Its seat is in the village Barendorf.
The Samtgemeinde Ostheide consists of the following municipalities: