| Games: | World Aquatics Championships |
| Nf: | TJK |
| Nfname: | Tajikistan Swimming Federation |
| Year: | 2019 |
| Flagcaption: | Flag of Tajikistan |
| Location: | Gwangju, South Korea |
| Appearances: | auto |
| App Begin Year: | 2001 |
| See also: | (1973–1991) |
Tajikistan 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.
Tajikistan entered four swimmers.[1]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Olimjon Ishanov | 50 m freestyle | 25.73 | 107 | did not advance | |||
| 50 m backstroke | 31.51 | 68 | did not advance | |||||
| align=left rowspan=2 | Alijon Khairulloev | 100 m freestyle | 58.36 | 110 | did not advance | |||
| 50 m butterfly | 28.81 | 81 | did not advance | |||||
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Ekaterina Bordachyova | 100 m freestyle | 1:10.13 | 86 | did not advance | |||
| 50 m backstroke | 37.95 | 46 | did not advance | |||||
| align=left rowspan=2 | Anastasiya Tyurina | 50 m freestyle | 29.98 | =81 | did not advance | |||
| 50 m butterfly | 33.17 | 58 | did not advance | |||||