Tunisia at the 2011 World Aquatics Championships
# Tunisia at the 2011 World Aquatics Championships

Tunisia competed at the 2011 World Aquatics Championships in Shanghai, China between 16 and 31 July.

## Swimming

Tunisia qualified 4 swimmers.

### Men

| Athlete | Event | Heats | Heats | Semifinals | Semifinals | Final | Final |
| - | - | - | - | - | - | - | - |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Ahmed Mathlouthi | Men's 400 m freestyle | 4:08.40 | 40 | — | — | did not advance | did not advance |
| Oussama Mellouli | Men's 400 m freestyle | 3:45.90 | 4 Q | — | — | 3:45.31 | 7 |
| Oussama Mellouli | Men's 800 m freestyle | 7:48.86 | 5 Q | — | — | 7:45.99 | 4 |
| Oussama Mellouli | Men's 1500 m freestyle | 15:13.56 | 15 | — | — | did not advance | did not advance |
| Taki Mrabet | Men's 200 m individual medley | 2:01.44 | 24 | did not advance | did not advance | did not advance | did not advance |
| Taki Mrabet | Men's 400 m individual medley | 4:18.99 | 16 | — | — | did not advance | did not advance |

### Women

| Athlete | Event | Heats | Heats | Semifinals | Semifinals | Final | Final |
| - | - | - | - | - | - | - | - |
| Athlete | Event | Time | Rank | Time | Rank | Time | Rank |
| Sarra Lajnef | Women's 400 m individual medley | 4:51.89 | 29 | — | — | did not advance | did not advance |
