| Otto Breg | |
| Nationality: | Austrian |
| Sport: | Bobsleigh |
| Birth Date: | 27 November 1949 |
| Birth Place: | Bruck an der Mur, Austria |
| Death Place: | Braunau am Inn, Austria |
Otto Breg (27 November 1949 - 3 January 2010) was an Austrian bobsledder. He competed in the four man event at the 1976 Winter Olympics.[1]