Swimming at the 2005 World Aquatics Championships – Women's 100 metre freestyle

The Women's 100m Freestyle event at the 11th FINA World Aquatics Championships was swum 28 – 29 July 2005 in Montreal, Quebec, Canada. Preliminary heats and Semifinal heats were 28 July; the final was 29 July.

Records
Prior to this competition, the existing world and competition records were as follows: