| Games: | World Aquatics Championships |
| Nf: | SEY |
| Nfname: | Seychelles Swimming Association |
| Year: | 2011 |
| Flagcaption: | Flag of Seychelles |
| Location: | Shanghai, China |
| Competitors: | 3 |
| Sports: | 1 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
| App Begin Year: | 1991 |
Seychelles competed at the 2011 World Aquatics Championships in Shanghai, China between July 16 and 31, 2011.
See main article: Swimming at the 2011 World Aquatics Championships.
Seychelles qualified 3 swimmers.[1]
| Athlete | Event | Heats | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Shane Mangroo | Men's 50m Freestyle | 26.32 | 77 | align=center colspan=4 | did not advance | ||
| Men's 100m Freestyle | 57.85 | 84 | align=center colspan=4 | did not advance | |||
| Ryan Govinden | Men's 200m Freestyle | 2:18.07 | 60 | align=center colspan=4 | did not advance | ||
| Men's 400m Freestyle | 4:55.10 | 48 | align=center colspan=2 | did not advance | |||
| Athlete | Event | Heats | Semifinals | Final | |||
|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | ||
| Aurelie Fanchette | Women's 200m Freestyle | 2:31.88 | 48 | align=center colspan=4 | did not advance | ||
| Women's 200m Backstroke | 2:52.04 | 39 | align=center colspan=4 | did not advance | |||