| Juan Antonio Díaz | |
| Sport: | Boxing |
| Birth Date: | 5 July 1961 |
| Birth Place: | Comodoro Rivadavia, Argentina |
Juan Antonio Díaz (born 5 July 1961) is an Argentine boxer. He competed in the men's heavyweight event at the 1988 Summer Olympics.[1] At the 1988 Summer Olympics, he lost to Maik Heydeck of East Germany.[1]