Trinidad and Tobago competed at the 2011 World Aquatics Championships in Shanghai, China between July 16 and 31, 2011.
Swimming
Main article: Swimming at the 2011 World Aquatics ChampionshipsTrinidad and Tobago qualified 3 swimmers.
- Men
| Athlete | Event | Heats | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| George Bovell | Men's 50m Freestyle | 22.03 | 3 Q | 22.02 | 6 Q | 22.04 | 7 |
| Joshua McLeod | Men's 50m Butterfly | 24.41 | 29 | did not advance | |||
| Men's 100m Butterfly | 55.80 | 45 | did not advance | ||||
- Women
| Athlete | Event | Heats | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Cherelle Thompson | Women's 50m Freestyle | 27.21 | 42 | did not advance | |||