Greece competed at the 2017 World Aquatics Championships in Budapest, Hungary from 14 July to 30 July.

Greece has entered three open water swimmers[1][2] 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):[3] Greece's synchronized swimming team consisted of 13 athletes (1 male and 12 female).

[4] Legend: (R) = Reserve Athlete Greece qualified both a men's and women's teams.

[5][6]