Swimming at the 2019 World Aquatics Championships – Women's 800 metre freestyle

The Women's 800 metre freestyle competition at the 2019 World Championships was held on 26 and 27 July 2019. Defending champion Katie Ledecky successfully defended her title in 8:13.58 with a final lap comeback against Italy's Simona Quadarella.

Swimming at the 2019 World Aquatics Championships – Women's 800 metre freestyle

The Women's 800 metre freestyle competition at the 2019 World Championships was held on 26 and 27 July 2019. Defending champion Katie Ledecky successfully defended her title in 8:13.58 with a final lap comeback against Italy's Simona Quadarella.