2013 World Aquatics Championships
| 15th FINA World Championships | |
|---|---|
| Host city | Barcelona, Catalonia | 
| Date(s) | 20 July–4 August 2013 | 
| Venue(s) | Palau Sant Jordi | 
| Nations participating | 181 | 
| Athletes participating | 2293 | 
| Officially opened by | Juan Carlos I of Spain | 
| Officially closed by | Julio Maglione | 
| 2013 FINA  World Championships  | ||
|---|---|---|
| Diving | ||
| Individual | ||
| 1 m | men | women | 
| 3 m | men | women | 
| 10 m | men | women | 
| Synchronised | ||
| 3 m | men | women | 
| 10 m | men | women | 
| High diving | ||
| 20 m | women | |
| 27 m | men | |
| Open water swimming | ||
| Single | ||
| 5 km | men | women | 
| 10 km | men | women | 
| 25 km | men | women | 
| Team | ||
| 5 km | mixed | |
| Swimming | ||
| Freestyle | ||
| 50 m | men | women | 
| 100 m | men | women | 
| 200 m | men | women | 
| 400 m | men | women | 
| 800 m | men | women | 
| 1500 m | men | women | 
| Backstroke | ||
| 50 m | men | women | 
| 100 m | men | women | 
| 200 m | men | women | 
| Breaststroke | ||
| 50 m | men | women | 
| 100 m | men | women | 
| 200 m | men | women | 
| Butterfly | ||
| 50 m | men | women | 
| 100 m | men | women | 
| 200 m | men | women | 
| Individual medley | ||
| 200 m | men | women | 
| 400 m | men | women | 
| Freestyle relay | ||
| 4 × 100 m | men | women | 
| 4 × 200 m | men | women | 
| Medley relay | ||
| 4 × 100 m | men | women | 
| Synchronised swimming | ||
| Solo | ||
| Technical | women | |
| Free | women | |
| Duet | ||
| Technical | women | |
| Free | women | |
| Team | ||
| Technical | women | |
| Free | women | |
| Combination | women | |
| Water polo | ||
| Tournament | men | women | 
The 15th FINA World Championships (Catalan: Campionat Mundial de Natació de 2013, Spanish: Campeonato Mundial de Natación de 2013) were held from 20 July to 4 August in Barcelona, Catalonia, Spain. The 2013 World Championships featured 6 aquatics disciplines: swimming, water polo, diving, high diving, open water, and synchronised swimming.
The Championships were originally awarded to Dubai, United Arab Emirates, in July 2009; however, Dubai withdrew as host in May 2010. FINA then re-bid the meet, and Barcelona was selected on September 26, 2010.