| Alfonso Calzolari | |
| Fullname: | Alfonso Calzolari |
| Birth Date: | 30 April 1887 |
| Birth Place: | Vergato, Italy |
| Discipline: | Road |
| Role: | Rider |
| Proyears1: | 1909–1911 |
| Proteam1: | Individual |
| Proyears2: | 1912 |
| Proteam2: | L'Italiana |
| Proyears3: | 1913 |
| Proteam3: | Atala/Stucchi |
| Proyears4: | 1914–1915 |
| Proteam4: | Stucchi |
| Proyears5: | 1916–1917 |
| Proteam5: | Individual |
| Proyears6: | 1918 |
| Proteam6: | Stucchi/Peugeot |
| Proyears7: | 1919–1920 |
| Proteam7: | Stucchi |
| Proyears8: | 1921–1926 |
| Proteam8: | Individual |
| Majorwins: | Grand Tours |
Alfonso Calzolari (30 April 1887 - 7 February 1983) was an Italian professional road racing cyclist. Calzolari was born in Vergato. The highlight of his career was his overall win in the 1914 Giro d'Italia.