| Official Name: | Bliznak |
| Native Name: | Близнак |
| Settlement Type: | Village |
| Pushpin Map: | Bulgaria |
| Pushpin Label Position: | Location in Bulgaria |
| Subdivision Name: |  Bulgaria |
| Subdivision Type1: | Province |
| Subdivision Name1: | Burgas Province |
| Subdivision Type2: | Municipality |
| Subdivision Name2: | Malko Tarnovo Municipality |
| Population As Of: | 2007 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
| Coordinates: | 42.1667°N 45°W |
Bliznak (Bulgarian: Близнак) is a village in Malko Tarnovo Municipality, in Burgas Province, in southeastern Bulgaria.[1] It is situated within Strandzha Nature Park.