| Horst Nußbaumer | |
| Nationality: | Austrian |
| Sport: | Rowing |
| Birth Date: | 13 June 1971 |
| Birth Place: | Kirchdorf an der Krems, Austria |
Horst Nußbaumer (born 13 June 1971) is an Austrian rower. He competed at the 1992 Summer Olympics, 1996 Summer Olympics and the 2000 Summer Olympics.[1]