| Otto Backe | |
| Birth Place: | Holmestrand, Norway |
| Death Place: | Norway |
| Citizenship: | Norway |
| Nationality: | Norwegian |
| Profession: | Politician |
| Office: | Governor of Troms |
| Term Start: | 1921 |
| Term End: | 1928 |
| Predecessor: | Klaus Nord Hoel |
| Successor: | Johannes Gerckens Bassøe |
Otto Backe (1874–1928) was a Norwegian civil servant and politician. He served as the County Governor of Troms county from 1921 until 1928.[1]