| Games: | World Aquatics Championships |
| Nf: | SEY |
| Nfname: | Seychelles Swimming Association |
| Year: | 2019 |
| Flagcaption: | Flag of Seychelles |
| Location: | Gwangju, South Korea |
| Competitors: | 9 |
| Sports: | 2 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
| App Begin Year: | 1991 |
Seychelles competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
See main article: Open water swimming at the 2019 World Aquatics Championships. Seychelles qualified four male and one female open water swimmers.[1] [2]
| Athlete | Event | Time | Rank | |
|---|---|---|---|---|
| Simon Bachmann | align=left rowspan=2 | Men's 5 km | 58:32.0 | 50 |
| Dean Hoffman | 1:05:33.5 | 60 | ||
| Damien Payet | align=left rowspan=2 | Men's 10 km | 2:00:27.6 | 66 |
| Alain Vidot | ||||
See main article: Swimming at the 2019 World Aquatics Championships.
Seychelles entered four swimmers.[3]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Simon Bachmann | 100 m butterfly | 58.06 | 64 | did not advance | |||
| 400 m individual medley | 4:41.42 | 39 | did not advance | |||||
| align=left rowspan=2 | Samuele Rossi | 50 m freestyle | 24.90 | 91 | did not advance | |||
| 50 m backstroke | 31.67 | 69 | did not advance | |||||
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Aaliyah Palestrini | 50 m breaststroke | 40.90 | 49 | did not advance | |||
| 50 m butterfly | 30.18 | 46 | did not advance | |||||
| align=left rowspan=2 | Felicity Passon | 50 m freestyle | 26.35 | 41 | did not advance | |||
| 200 m backstroke | 2:14.60 | 30 | did not advance | |||||