| Birth Date: | 4 February 1919 |
| Birth Place: | Bologna, Italy |
| Death Date: | 28 December 1974 (aged 55) |
| Death Place: | Bologna, Italy |
| Sport: | Greco-Roman wrestling |
| Show-Medals: | yes |
Guido Fantoni (4 February 1919 – 28 December 1974) was a heavyweight Greco-Roman wrestler from Italy who won bronze medals at the 1948 Olympics and 1953 World Championships.[1]