The women's 100 metre butterfly event at the 2008 Olympic Games took place on 9–11 August at the Beijing National Aquatics Center in Beijing, China. Top favorite Lisbeth Trickett powered past the entire field to earn Australia's second straight gold in the event. She posted a lifetime best of 56.73, just 0.12 of a second outside the world record set by Dutch swimmer Inge de Bruijn at the 2000 Summer Olympics in Sydney. U.S. swimmer Christine Magnuson took home the silver in 57.10, while Trickett's teammate Jessicah Schipper picked up the bronze in 57.25, handing an entire medal haul for the Aussies in the pool.