- Source: Great Britain at the 2019 World Aquatics Championships
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- World Aquatics Swimming Championships (25m)
Great Britain competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.
Medalists
Artistic swimming
Great Britain's artistic swimming team consisted of 2 athletes (2 female).
Women
Diving
Great Britain entered 13 divers.
Men
Women
Mixed
High diving
Great Britain qualified three male and one female high divers.
Men
Women
Open water swimming
Great Britain qualified three male and three female open water swimmers.
Men
Women
Mixed
Swimming
Great Britain entered 25 swimmers.
Men
Women
Mixed
Legend: (*) = Swimmers who participated in the heat only.