Brazil at the 2024 World Aquatics Championships
Brazil competed at the 2024 World Aquatics Championships in Doha, Qatar from 2 to 18 February.
Athletes by discipline
The following is the number of competitors who participated at the Championships per discipline.| Sport | Men | Women | Total |
| Artistic swimming | 1 | 11 | 12 |
| Diving | 3 | 3 | 6 |
| High diving | 1 | 1 | 2 |
| Open water swimming | 2 | 2 | 4 |
| Swimming | 5 | 7 | 12 |
| Water polo | 13 | 13 | 26 |
| Total | 25 | 37 | 61 |
Artistic swimming
Brazil entered 12 artistic swimmers.;Men
;Women
;Mixed
Diving
Brazil entered 6 divers.;Men
;Women
High diving
Brazil entered 2 high divers.;Men
| Athlete | Event | Points | Rank |
| Jucelino Lima | Men's high diving | 192.90 | 25 |
;Women
| Athlete | Event | Points | Rank |
| Patrícia Valente | Women's high diving | 102.50 | 18 |
Open water swimming
Brazil entered 4 open water swimmers.;Men
| Athlete | Event | Time | Rank |
| Pedro Farias | Men's 5 km | 54:16.6 | 35 |
| Henrique Figueirinha | Men's 5 km | 53:50.8 | 29 |
| Pedro Farias | Men's 10 km | 1:52:10.9 | 38 |
| Henrique Figueirinha | Men's 10 km | 1:51:43.7 | 34 |
;Women
| Athlete | Event | Time | Rank |
| Ana Marcela Cunha | Women's 5 km | 57:36.8 | |
| Viviane Jungblut | Women's 5 km | 57:52.9 | 9 |
| Ana Marcela Cunha | Women's 10 km | 1:57:30.8 | 4 |
| Viviane Jungblut | Women's 10 km | 1:57:39.3 | 14 |
;Mixed
| Athlete | Event | Time | Rank |
| Pedro Farias Henrique Figueirinha Ana Marcela Cunha Viviane Jungblut | Team relay | 1:05:36.2 | 8 |
Swimming
Brazil entered 12 swimmers.;Men
;Women
Water polo
;SummaryMen's tournament
;Team roster;Group play
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;13–16th place semifinals
;13th place game
Women's tournament
;Team roster;Group play
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;13–16th place semifinals
;15th place game