| Horacio Barrionuevo | |
| Fullname: | Horacio Óscar Barrionuevo |
| Birth Date: | 6 June 1939 |
| Birth Place: | Junín, Argentina |
| Position: | Defender |
| Years1: | 1959 |
| Years2: | 1959–1960 |
| Years3: | 1961 |
| Years4: | 1962–1963 |
| Years5: | 1964 |
| Years6: | 1965–1966 |
| Years7: | 1966–1967 |
| Caps4: | 40 |
| Goals4: | 7 |
| Caps7: | 23 |
| Goals7: | 5 |
Horacio Barrionuevo (born 6 June 1939) is an Argentine former football defender.