| Otto Haug | |
| Nationality: | Norwegian |
| Birth Date: | 24 July 1876 |
| Birth Place: | Oslo, Norway |
| Death Place: | Oslo, Norway |
| Sport: | Athletics |
| Event: | Polevaulting |
Otto Haug (24 July 1876 – 3 March 1948) was a Norwegian athlete. He competed in the polevault at the 1906 Intercalated Games.[1]