| Guillermo Casanova | |
| Fullname: | Guillermo Segundo Casanova Miranda |
| Birth Date: | 21 May 1918 |
| Position: | Midfielder |
| Nationalteam1: | Chile |
| Nationalyears1: | 1942 |
| Nationalcaps1: | 5 |
| Nationalgoals1: | 0 |
Guillermo Casanova (21 May 1918 - 16 July 1981) was a Chilean footballer. He played in five matches for the Chile national football team in 1942.[1] He was also part of Chile's squad for the 1942 South American Championship.[2]