# Brazil at the 1973 World Aquatics Championships

Brazil competed at the 1973 World Aquatics Championships in Belgrade, Yugoslavia from August 31 to September 9.

## Diving

| Athlete | Event | Preliminaries | Preliminaries | Final | Final |
| Athlete | Event | Points | Rank | Points | Rank |
| Júlio César Veloso | Men's springboard | 393.99 | 20 | did not advance | did not advance |
| Milton Machado | Men's springboard | did not start | did not start | did not start | did not start |
| Milton Machado | Men's platform | 448.32 | 10 | did not advance | did not advance |
| Paulo Costa | Men's platform | 418.32 | 14 | did not advance | did not advance |
| Silvana Braga | Women's platform | 284.97 | 18 | did not advance | did not advance |

## Swimming

| Athlete | Event | Heat | Heat | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank |
| José Aranha | 100 m freestyle | 54.15 | 14 | did not advance | did not advance |
| Ruy de Oliveira | 100 m freestyle | 53.67 CR | 8 Q | 53.70 | 8 |
| José Namorado | 200 m freestyle | 1:57.82 | 13 | did not advance | did not advance |
| José Namorado | 400 m freestyle | 4:14.37 | 13 | did not advance | did not advance |
| Paul Jouanneau | 400 m freestyle | 4:18.19 | 17 | did not advance | did not advance |
| Luis Reinaldo Fleck | 1500 m freestyle | — | — | 17:11.62 | 22 |
| Rômulo Arantes | 100 m backstroke | 1:00.17 | 7 Q | 1:00.37 | 7 |
| Rômulo Arantes | 200 m backstroke | 2:12.93 | 14 | did not advance | did not advance |
| César Lourenco | 100 m backstroke | 1:03.95 | 28 | did not advance | did not advance |
| César Lourenco | 200 m backstroke | 2:15.97 | 15 | did not advance | did not advance |
| Sérgio Pinto Ribeiro | 100 m breaststroke | 1:09.80 | 18 | did not advance | did not advance |
| Sérgio Pinto Ribeiro | 200 m breaststroke | 2:34.07 | 21 | did not advance | did not advance |
| Eduardo Alijo | 100 m butterfly | 1:00.39 | 19 | did not advance | did not advance |
| Eduardo Alijo | 200 m butterfly | 2:12.29 | 19 | did not advance | did not advance |
| Sérgio Waismaun | 100 m butterfly | 1:00.88 | 21 | did not advance | did not advance |
| Sérgio Waismaun | 200 m butterfly | did not start | did not start | did not advance | did not advance |
| Antônio Azevedo | 200 m individual medley | 2:17.25 | 20 | did not advance | did not advance |
| Antônio Azevedo | 400 m individual medley | 4:56.24 | 23 | did not advance | did not advance |
| Ruy de Oliveira José Namorado Jim Adams José Aranha | 4 × 100 m freestyle relay | 3:35.25 | 4 Q | 3:33.39 | 5 |
| Brazil team | 4 × 200 m freestyle relay | 8:12.06 | 11 | did not advance | did not advance |
| Brazil team | 4 × 100 m medley relay | 4:04.09 | 9 | did not advance | did not advance |
| Athlete | Event | Heat | Heat | Final | Final |
| Athlete | Event | Time | Rank | Time | Rank |
| Lucy Burle | 100 m freestyle | 1:01.35 | 13 | did not advance | did not advance |
| Lucy Burle | 200 m freestyle | 2:14.98 | 18 | did not advance | did not advance |
| Maria Guimarães | 200 m freestyle | 2:14.21 | 15 | did not advance | did not advance |
| Maria Guimarães | 400 m freestyle | 4:34.05 | 10 | did not advance | did not advance |
| Maria Guimarães | 800 m freestyle | 9:27.92 | 12 | did not advance | did not advance |
| Valeri Borges | 100 m backstroke | 1:13.10 | 22 | did not advance | did not advance |
| Valeri Borges | 200 m backstroke | 2:41.70 | 22 | did not advance | did not advance |
| Cristina Teixeira | 100 m breaststroke | 1:20.48 | 16 | did not advance | did not advance |
| Cristina Teixeira | 200 m breaststroke | 2:52.07 | 16 | did not advance | did not advance |
| Suzana Mendonça | 100 m breaststroke | 1:20.81 | 18 | did not advance | did not advance |
| Suzana Mendonça | 200 m breaststroke | 2:54.31 | 19 | did not advance | did not advance |
| Jaqueline Mross | 100 m butterfly | 1:09.75 | 28 | did not advance | did not advance |
| Rosemary Ribeiro | 100 m butterfly | 1:08.40 | 18 | did not advance | did not advance |
| Maria Isabel Guerra | 200 m individual medley | 2:36.42 | 21 | did not advance | did not advance |
| Maria Isabel Guerra | 400 m individual medley | 5:34.58 | 22 | did not advance | did not advance |
| Brazil team | 4 × 100 m freestyle relay | 4:13.91 | 13 | did not advance | did not advance |
| Brazil team | 4 × 100 m medley relay | 4:43.65 | 12 | did not advance | did not advance |