| Martin Andreas Unmack | |
| Birth Place: | Norway |
| Death Place: | Norway |
| Citizenship: | Norway |
| Nationality: | Norwegian |
| Profession: | Politician |
| Office: | Governor of Finnmarkens amt |
| Term Start: | 1800 |
| Term End: | 1806 |
| Predecessor: | Ole Hannibal Sommerfeldt |
| Successor: | Hilmar Meincke Krohg |
Martin Andreas Unmack (c. 1753–1806) was a Norwegian civil servant and politician. He served as the County Governor of Finnmarkens amt from 1800 until his death in 1806.[1]