| Otto Hauglin | |
| Birth Date: | 7 February 1942 |
| Birth Place: | Fredrikstad |
| Death Place: | Oslo |
| Nationality: | Norwegian |
| Occupation: | Sociologist and politician |
| Party: | Socialist Left Party |
Otto Hauglin (7 February 1942 – 18 November 2012) was a Norwegian sociologist and politician for the Socialist Left Party (SV).[1] He was an elected member of the Parliament of Norway from 1973 to 1977, representing Østfold county.[2]
Hauglin was born in Fredrikstad, a son of industrial worker Jens Einar Hauglin and Else Helene Lundheim.[2]
He died in Oslo in November 2012.[1]