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, Canada. Swimming's 40 events were split evenly between males and females (20 each) and were:
Legend: WR – World record; CR – Championship record
Host nation
Nine World Records were set at the 2005 World Championships.
Fifteen Championships (or meet) records were set at the 2005 World Championships.
Note: Results followed by an asterisk (*) denote that the record was subsequently re-broken during the competition.