| Games: | World Aquatics Championships |
| Nf: | LAT |
| Nfname: | Latvijas Peldēšanas federācija |
| Year: | 2019 |
| Flagcaption: | Flag of Latvia |
| Location: | Gwangju, South Korea |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
Latvia 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.
Latvia entered six swimmers.[1]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Daniils Bobrovs | 100 m breaststroke | 1:03.32 | 55 | did not advance | |||
| 200 m breaststroke | 2:17.07 | 42 | did not advance | |||||
| align=left rowspan=2 | Ģirts Feldbergs | 50 m backstroke | 26.42 | =44 | did not advance | |||
| 100 m backstroke | 56.34 | 43 | did not advance | |||||
| Didzis Rudavs | 50 m breaststroke | 28.94 | 47 | did not advance | ||||
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Ieva Maļuka | 100 m freestyle | 56.19 | 37 | did not advance | |||
| 200 m freestyle | 2:02.38 | 29 | did not advance | |||||
| align=left rowspan=2 | Gabriela Ņikitina | 50 m freestyle | 25.96 | 35 | did not advance | |||
| 50 m butterfly | 27.48 | =34 | did not advance | |||||
| align=left rowspan=2 | Kristina Steina | 100 m backstroke | 1:01.49 | 29 | did not advance | |||
| 200 m backstroke | 2:14.00 | 27 | did not advance | |||||