Swimming at the 2005 World Aquatics Championships – Men's 50 metre freestyle

The men's 50 metre freestyle event at the 2005 World Aquatics Championships was held on 29 (heats and semifinals) and 30 July 2005 at the Parc Jean-Drapeau in Montreal, Canada.

Records
Prior to this competition, the existing world and competition records were as follows: The following records were established during the competition: