| Games: | World Aquatics Championships |
| Nf: | GUA |
| Nfname: | National Federation of Swimming, Diving, Water Polo and Synchronized Swimming of Guatemala |
| Year: | 2019 |
| Flagcaption: | Flag of Guatemala |
| Location: | Gwangju, South Korea |
| Competitors: | 6 |
| Sports: | 2 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
Guatemala competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
See main article: Open water swimming at the 2019 World Aquatics Championships. Guatemala qualified one male and one female open water swimmers.[1] [2]
| Athlete | Event | Time | Rank | |
|---|---|---|---|---|
| align=left rowspan=2 | Santiago Reyes | Men's 5 km | 1:01:51.7 | 57 |
| Men's 10 km | 2:08:27.5 | 69 |
| Athlete | Event | Time | Rank | |
|---|---|---|---|---|
| align=left rowspan=2 | Yanci Vanegas | Women's 5 km | 1:06:24.4 | 50 |
| Women's 10 km | 2:11:59.1 | 56 |
See main article: Swimming at the 2019 World Aquatics Championships.
Guatemala entered four swimmers.[3]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Erick Gordillo | 200 m backstroke | 2:05.53 | 38 | did not advance | |||
| 400 m individual medley | 4:28.57 | 29 | did not advance | |||||
| align=left rowspan=2 | Fernando Ponce | 100 m butterfly | 58.26 | 66 | did not advance | |||
| 200 m butterfly | 2:07.61 | 45 | did not advance | |||||
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Daila Ismatul | 50 m freestyle | 28.31 | 65 | did not advance | |||
| 400 m freestyle | 4:34.75 | 37 | did not advance | |||||
| align=left rowspan=2 | Gabriela Santis | 100 m freestyle | 58.93 | 50 | did not advance | |||
| 200 m freestyle | 2:05.36 | 36 | did not advance | |||||