 
| Roles | Competed in Olympic Games | 
|---|---|
| Sex | Male | 
| Full name | Wilhelm "Willi"•Melliger | 
| Used name | Willi•Melliger | 
| Born | 26 July 1953 in Buttwil, Aargau (SUI) | 
| Died | 16 January 2018 | 
| Measurements | 170 cm / 73 kg | 
| NOC |  Switzerland | 
| Medals | OG | 
| Gold | 0 | 
| Silver | 2 | 
| Bronze | 0 | 
| Total | 2 | 
A four-time Olympian in the equestrian events, Willi Melliger was twice a show jumping silver medalist, capped by his individual silver aboard Calvaro V at the 1996 Atlanta Olympics. He and Calvaro competed together from 1995 to 2001, also winning a team European Championship in 1995. At his stable in Neuendorf Melliger did jumping training and organized the CSI Neuendorf. In December 2017 Melliger suffered a stroke, and spent the next month in a coma before dying.
| Games | Discipline (Sport) / Event | NOC / Team | Pos | Medal | As | |
|---|---|---|---|---|---|---|
| 1984 Summer Olympics | Equestrian Jumping (Equestrian) |  SUI | Willi Melliger | |||
| Individual, Open (Olympic) | Van Gogh | 38 | ||||
| Team, Open (Olympic) | Van Gogh / Switzerland | 5 | ||||
| 1992 Summer Olympics | Equestrian Jumping (Equestrian) |  SUI | Willi Melliger | |||
| Individual, Open (Olympic) | Quinta C | 61 r1/2 | ||||
| Team, Open (Olympic) | Quinta C / Switzerland | =5 | ||||
| 1996 Summer Olympics | Equestrian Jumping (Equestrian) |  SUI | Willi Melliger | |||
| Individual, Open (Olympic) | Calvaro V | 2 | Silver | |||
| Team, Open (Olympic) | Calvaro V / Switzerland | 6 | ||||
| 2000 Summer Olympics | Equestrian Jumping (Equestrian) |  SUI | Willi Melliger | |||
| Individual, Open (Olympic) | Calvaro V | =10 | ||||
| Team, Open (Olympic) | Calvaro V / Switzerland | 2 | Silver |