Jamaica competed at the 2011 World Aquatics Championships in Shanghai, China between July 16 and 31, 2011.
Jamaica qualified 2 swimmers.[1]
| Athlete | Event | Heats | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Brad Hamilton | Men's 100m Freestyle | DNS | Did not advance | ||||
| Men's 100m Butterfly | 56.48 | 47 | Did not advance | ||||
| Athlete | Event | Heats | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Victoria Ho | Women's 200m Freestyle | DNS | Did not advance | ||||
| Women's 400m Freestyle | DNS | Did not advance | |||||