Cook Islands at the 2019 World Aquatics Championships
Cook Islands competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
Swimming
Cook Islands entered three swimmers.;Men
;Women
Cook Islands competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
;Men
;Women