| Games: | World Aquatics Championships |
| Nf: | CRO |
| Nfname: | Croatian Swimming Federation |
| Year: | 2019 |
| Flagcaption: | Flag of Croatia |
| Location: | Gwangju, South Korea |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 1 |
| Rank: | 23 |
| Appearances: | auto |
Croatia competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
See main article: Diving at the 2019 World Aquatics Championships.
Croatia's diving team consisted of 2 athletes (1 male and 1 female).[1]
| Athlete | Event | Preliminaries | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Points | Rank | Points | Rank | Points | Rank | ||
| align=left rowspan=2 | Juraj Melša | Men's 1 m springboard | 231.60 | 42 | did not advance | ||
| Men's 3 m springboard | 326.30 | 44 | did not advance | ||||
| align=left rowspan=2 | Marcela Marić | Women's 1 m springboard | 199.75 | 35 | did not advance | ||
| Women's 3 m springboard | 197.05 | 44 | did not advance | ||||
See main article: Swimming at the 2019 World Aquatics Championships.
Croatia entered 11 swimmers.[2]
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Bruno Blašković | 50 m freestyle | 22.55 | 33 | did not advance | |||
| 100 m freestyle | 49.24 | 27 | did not advance | |||||
| align=left rowspan=2 | Anton Loncar | 100 m backstroke | 55.44 | 35 | did not advance | |||
| 200 m backstroke | 1:59.07 | 23 | did not advance | |||||
| Ognjen Marić | 200 m freestyle | 1:50.84 | 41 | did not advance | ||||
| Nikola Miljenić | 50 m butterfly | 24.06 | 35 | did not advance | ||||
| align=left rowspan=2 | Nikola Obrovac | 50 m breaststroke | 27.27 | 15 Q | 27.31 | 14 | did not advance | |
| 100 m breaststroke | 1:01.18 | 29 | did not advance | |||||
| Kristofer Rogic | 50 m backstroke | 25.91 | 36 | did not advance | ||||
| Filip Zelić | 200 m butterfly | 2:02.47 | 38 | did not advance | ||||
| Anton Lončar Nikola Obrovac Nikola Miljenić Bruno Blašković | 4×100 m medley relay | 3:37.18 | 19 | did not advance | ||||
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| Ana Herceg | 200 m backstroke | 2:16.29 | 33 | did not advance | ||||
| align=left rowspan=2 | Ema Rajić | 50 m breaststroke | 32.39 | 36 | did not advance | |||
| 100 m breaststroke | 1:10.10 | 32 | did not advance | |||||
| align=left rowspan=2 | Matea Sumajstorčić | 800 m freestyle | 8:48.61 | 25 | did not advance | |||
| 1500 m freestyle | 17:02.01 | 26 | did not advance | |||||
See main article: article and Water polo at the 2019 World Aquatics Championships.
See main article: article and Water polo at the 2019 World Aquatics Championships – Men's tournament.