| Image Coa: | Wappen Blankenhagen.png |
| Coordinates: | 54.17°N 12.3592°W |
| Image Plan: | Blankenhagen_in_LRO.svg |
| State: | Mecklenburg-Vorpommern |
| District: | Rostock |
| Amt: | Rostocker Heide |
| Elevation: | 37 |
| Area: | 25.25 |
| Postal Code: | 18182 |
| Area Code: | 038201 |
| Licence: | LRO |
| Gemeindeschlüssel: | 13 0 72 015 |
| Website: | www.amt-rostocker-heide.de |
| Mayor: | Detlef Kröger |
Blankenhagen is a municipality in the Rostock district, in Mecklenburg-Vorpommern, Germany.