| Full Name: | Giovanni Mazzara |
| Nationality: | Italian |
| Sport: | Athletics |
| Event: | Long-distance running |
| Birth Date: | 13 May 1975 |
| Country: |  Italy |
Sebastiano Mazzara (born 13 May 1975) is a former Italian male long-distance runner who competed at two editions of the IAAF World Cross Country Championships at senior level (1996, 1999),[1] and one of the IAAF World Half Marathon Championships (1999).