| Cook Islands at the 2019 World Aquatics Championships | |
|---|---|
 | |
| FINA code | COK |
| National federation | Cook Islands Aquatics Federation |
| in Gwangju, South Korea | |
| Medals |
|
| World Aquatics Championships appearances | |
Cook Islands competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
|
Main article: Swimming at the 2019 World Aquatics Championships |
Cook Islands entered three swimmers.[1]
| Athlete | Event | Heat | Semifinal | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Malcolm Richardson | 50 m breaststroke | 29.36 | 55 | did not advance | |||
| 100 m breaststroke | 1:06.64 | 76 | did not advance | ||||
| Wesley Roberts | 200 m freestyle | 1:51.25 | 43 | did not advance | |||
| 400 m freestyle | 3:58.12 | 35 | — | did not advance | |||
| Athlete | Event | Heat | Semifinal | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Kirsten Fisher-Marsters | 50 m breaststroke | 34.44 | 40 | did not advance | |||
| 100 m breaststroke | 1:17.19 | 49 | did not advance | ||||