Tajikistan competed at the 2011 World Aquatics Championships in Shanghai, China between July 16 and 31, 2011.
Tajikistan qualified 3 swimmers.[1]
| Athlete | Event | Heats | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Alisher Chingizov | Men's 50m Freestyle | 29.05 | 102 | Did not advance | |||
| Men's 50m Butterfly | DNS | Did not advance | |||||
| Ruslan Oliftaev | Men's 50m Breaststroke | 37.56 | 45 | Did not advance | |||
| Men's 100m Breaststroke | 1:25.82 | 80 | Did not advance | ||||
| Athlete | Event | Heats | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Katerina Izmailova | Women's 50m Freestyle | 31.38 | 67 | Did not advance | |||
| Women's 100m Freestyle | 1:11.56 | 74 | Did not advance | ||||