Mario Mattioli should not be confused with Mario Mattoli.
| Birth Date: | 1 January 1945 |
| Birth Place: | Ravenna, Italy |
| Death Date: | 30 May 2003 (aged 58) |
| Death Place: | Firenze, Italy |
| Height: | 1.85m (06.07feet) |
| Weight: | 80kg (180lb) |
| Sport: | Volleyball |
| Club: | Ariccia Volley Club |
| Show-Medals: | yes |
Mario Mattioli (1 January 1945 – 30 May 2003) was an Italian volleyball player. He played 233 international matches for the Italian team, winning the 1970 Summer Universiade and finishing second at the 1975 Mediterranean Games and eighth at the 1976 Summer Olympics.