| José Antonio Casilla | |
| Full Name: | José Antonio Casilla Cortés |
| Nationality: | Spanish |
| Birth Date: | 29 August 1979 |
| Birth Place: | Tarragona, Catalonia, Spain |
| Show-Medals: | yes |
| Medals-Title: | Medal record |
José Antonio Casilla Cortés (born August 29, 1979, in Reus, Tarragona, Catalonia) is a Spanish retired volleyball player who represented his native country at the 2000 Summer Olympics in Sydney, Australia. He finished ninth with the Men's National Team.