| Roles | Competed in Olympic Games |
|---|---|
| Sex | Male |
| Full name | Guillermo José•Fischer |
| Used name | Guillermo•Fischer |
| Nick/petnames | Lobito |
| Born | 18 July 1996 in Oberá, Misiones (ARG) |
| Affiliations | Sociedad Deportiva Teucro. Pontevedra, ESP |
| NOC |  Argentina |
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 2024 Summer Olympics | Handball | ARG |
Guillermo Fischer | |||
| Handball, Men (Olympic) | Argentina | 12 |
