| Games: | World Aquatics Championships |
| Nf: | GUM |
| Nfname: | Guam Swimming Federation |
| Year: | 2019 |
| Flagcaption: | Flag of Guam |
| Location: | Gwangju, South Korea |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
Guam 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.
Guam entered three swimmers.[1]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Benjamin Schulte | 50 m breaststroke | 28.73 | 46 | did not advance | |||
| 100 m breaststroke | 1:04.40 | 61 | did not advance | |||||
| align=left rowspan=2 | Jagger Stephens | 50 m freestyle | 24.45 | 83 | did not advance | |||
| 100 m freestyle | 52.53 | 80 | did not advance | |||||
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Mineri Gomez | 100 m freestyle | 1:05.11 | 79 | did not advance | |||
| 200 m freestyle | 2:23.73 | 58 | did not advance | |||||