Swimming at the 2005 World Aquatics Championships

The Swimming competition at the 11th FINA World Aquatics Championships consisted of 40 long course events, swum July 24–31, 2005 at pools in Parc Jean-Drapeau in Montreal, Quebec, Canada. Swimming's 40 events were split evenly between males and females (20 each) and were:

• freestyle (free): 50, 100, 200, 400, 800 and 1500;
• backstroke (back): 50, 100 and 200;
• breaststroke (breast): 50, 100 and 200;
• butterfly (fly): 50, 100 and 200;
• Individual Medley (IM): 200 and 400; and
• relay: 4×100 and 4×200 freestyle, and 4×100 medley.