| Times held | 14 |
|---|---|
| Total participants | 566 |
| Total countries | 128 |
| Year | Event | Status | Participants | NOCs |
|---|---|---|---|---|
| 1968 | 100 metres Butterfly, Men | Olympic | 47 | 28 |
| 1972 | 100 metres Butterfly, Men | Olympic | 39 | 27 |
| 1976 | 100 metres Butterfly, Men | Olympic | 44 | 29 |
| 1980 | 100 metres Butterfly, Men | Olympic | 34 | 29 |
| 1984 | 100 metres Butterfly, Men | Olympic | 53 | 39 |
| 1988 | 100 metres Butterfly, Men | Olympic | 51 | 36 |
| 1992 | 100 metres Butterfly, Men | Olympic | 69 | 48 |
| 1996 | 100 metres Butterfly, Men | Olympic | 58 | 52 |
| 2000 | 100 metres Butterfly, Men | Olympic | 62 | 53 |
| 2004 | 100 metres Butterfly, Men | Olympic | 59 | 51 |
| 2008 | 100 metres Butterfly, Men | Olympic | 65 | 51 |
| 2012 | 100 metres Butterfly, Men | Olympic | 43 | 36 |
| 2016 | 100 metres Butterfly, Men | Olympic | 43 | 32 |
| 2020 | 100 metres Butterfly, Men | Olympic | 56 | 45 |
| NOC | Gold | Silver | Bronze | Total | |
|---|---|---|---|---|---|
| United States | USA |
8 | 6 | 3 | 17 |
| Sweden | SWE |
2 | 0 | 0 | 2 |
| Russian Federation | RUS |
1 | 1 | 1 | 3 |
| Suriname | SUR |
1 | 0 | 1 | 2 |
| Singapore | SGP |
1 | 0 | 0 | 1 |
| West Germany | FRG |
1 | 0 | 0 | 1 |
| Australia | AUS |
0 | 2 | 3 | 5 |
| Hungary | HUN |
0 | 2 | 0 | 2 |
| South Africa | RSA |
0 | 2 | 0 | 2 |
| Canada | CAN |
0 | 1 | 0 | 1 |
| East Germany | GDR |
0 | 1 | 0 | 1 |
| Poland | POL |
0 | 1 | 0 | 1 |
| Serbia | SRB |
0 | 1 | 0 | 1 |
| Great Britain | GBR |
0 | 0 | 1 | 1 |
| Spain | ESP |
0 | 0 | 1 | 1 |
| Switzerland | SUI |
0 | 0 | 1 | 1 |
| Ukraine | UKR |
0 | 0 | 1 | 1 |
| Athlete | Nat | Gold | Silver | Bronze | Total |
|---|---|---|---|---|---|
| Michael Phelps | USA |
3 | 1 | 0 | 4 |
| Pablo Morales | USA |
1 | 1 | 0 | 2 |
| Mark Spitz | USA |
1 | 1 | 0 | 2 |
| Anthony Nesty | SUR |
1 | 0 | 1 | 2 |
| Michael Groß | FRG |
1 | 0 | 0 | 1 |
| Denis Pankratov | RUS EUN |
1 | 0 | 0 | 1 |
| Pär Arvidsson | SWE |
1 | 0 | 0 | 1 |
| Lars Frölander | SWE |
1 | 0 | 0 | 1 |
| Doug Russell | USA |
1 | 0 | 0 | 1 |
| Matt Vogel | USA |
1 | 0 | 0 | 1 |
| Joseph Schooling | SGP |
1 | 0 | 0 | 1 |
| Caeleb Dressel | USA |
1 | 0 | 0 | 1 |