| Games: | World Aquatics Championships |
| Country: | Timor-Leste |
| Nf: | TLS |
| Nfname: | National Swimming Federation of Timor Leste |
| Year: | 2023 |
| Flagcaption: | Flag of Timor-Leste |
| Location: | Fukuoka, Japan |
| Competitors: | 2 |
| Sports: | 1 |
| Appearances: | auto |
Timor-Leste 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. Timor-Leste entered 2 swimmers.[1]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Jolanio Guterres | 50 metre freestyle | 30.36 | 115 | Did not advance | |||
| 100 metre freestyle | 1:12.97 | 114 | Did not advance | |||||
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Imelda Ximenes Belo | 50 metre freestyle | 34.14 | 98 | Did not advance | |||
| 100 metre freestyle | 1:17.14 | 77 | Did not advance | |||||