Swimming at the 2003 World Aquatics Championships – Women's 50 metre butterfly

Women's 50 Fly at the 2003 FINA World Aquatics Championships
Dates	July 25 (prelims, semifinals) July 26 (final)
Medalists
Inge de Bruijn    Netherlands   Jenny Thompson    United States   Anna-Karin Kammerling    Sweden
← 2001 2005 →

The Women's 50m Butterfly event at the 10th FINA World Aquatics Championships swam on July 25 – 26, 2003 in Barcelona, Spain. Preliminary and Semifinal heats swam on July 25, with the Final swum on July 26.

At the start of the event, the World (WR) and Championship (CR) records were:

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