| Games: | World Aquatics Championships |
| Nf: | SWZ |
| Nfname: | Eswatini Swimming Association |
| Year: | 2023 |
| Flagcaption: | Flag of Eswatini |
| Location: | Fukuoka, Japan |
| Competitors: | 4 |
| Sports: | 1 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
Eswaitini is set to compete at the 2023 World Aquatics Championships in Fukuoka, Japan from 14 to 30 July.
See main article: Swimming at the 2023 World Aquatics Championships. Eswatini entered 4 swimmers.[1]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Simanga Dlamini | 50 metre freestyle | 27.84 | 106 | Did not advance | |||
| 100 metre butterfly | 1:04.50 | 71 | Did not advance | |||||
| align=left rowspan=2 | Chadd Ng Chiu Ning Ning | 50 metre breaststroke | 32.37 | 53 | Did not advance | |||
| 100 metre breaststroke | 1:10.80 | 66 | Did not advance | |||||
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Siwakhile Dlamini | 50 metre freestyle | 30.78 | 87 | Did not advance | |||
| 100 metre freestyle | 1:07.78 | 70 | Did not advance | |||||
| align=left rowspan=2 | Hayley Hoy | 50 metre butterfly | 30.73 | 52 | Did not advance | |||
| 100 metre butterfly | 1:09.14 | 46 | Did not advance | |||||