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

Liechtensteinian 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):[1] Liechtenstein's synchronized swimming team consisted of 2 athletes (2 female).

[2]