| Games: | World Aquatics Championships |
| Nf: | SWZ |
| Nfname: | Eswatini Swimming Association |
| Year: | 2019 |
| Flagcaption: | Flag of Eswatini |
| Location: | Gwangju, South Korea |
| Competitors: | 3 |
| Sports: | 1 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
Eswatini competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
See main article: Swimming at the 2019 World Aquatics Championships.
Eswatini entered three swimmers.[1]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Simanga Dlamini | 50 m butterfly | 28.64 | 79 | did not advance | |||
| 100 m butterfly | 1:02.39 | 75 | did not advance | |||||
| align=left rowspan=2 | Mark Hoare | 50 m freestyle | 25.76 | 108 | did not advance | |||
| 100 m freestyle | 59.27 | 111 | did not advance | |||||
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Robyn Young | 50 m backstroke | 33.54 | 39 | did not advance | |||
| 100 m backstroke | 1:13.97 | 59 | did not advance | |||||