| Roles | Competed in Olympic Games | |
|---|---|---|
| Sex | Male | |
| Full name | István•Messzi | |
| Used name | István•Messzi | |
| Born | 29 June 1961 in Kiskunfélegyháza, Bács-Kiskun |  HUN |
| Died | 9 May 1991 (aged 29 years 10 months 10 days) in Katalinpuszta, Tolna | HUN |
| Measurements | 175 cm / 82 kg | |
| Affiliations | Kecskeméti Sport Club | |
| NOC | Hungary | HUN |
| Medals | OG |
| Gold | 0 |
| Silver | 1 |
| Bronze | 0 |
| Total | 1 |
István Messzi had the following podium finishes at major championships: 2nd in the 1988 Olympics Light-Heavyweight class (370.0 kg).
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1988 Summer Olympics | Weightlifting | HUN |
István Messzi | |||
| Light-Heavyweight, Men (Olympic) | 2 | Silver |
