Greece competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July.

Greece's artistic swimming team consisted of 12 athletes (12 female).

[1] Legend: (R) = Reserve Athlete Greek divers qualified for the individual spots at the World Championships.

[2] Greece qualified one male and one female open water swimmers.

[3][4] Greek swimmers have achieved qualifying standards in the following events (up to a maximum of 2 swimmers in each event at the A-standard entry time, and 1 at the B-standard): Greece qualified both a men's and women's teams.