The 17th FINA World Championships (Hungarian: 2017-es úszó-világbajnokság) were held in Budapest, Hungary from 14 to 30 July 2017.

[1][2] On 15 July 2011, at the biennial General Congress of FINA in Shanghai, the host city of the 2017 World Aquatics Championships, Guadalajara, Mexico was announced as the winning bid.

Kazan, Russia was awarded the 2015 Championships in the same vote, whereas the rival bid from Hong Kong, China was left unrewarded.

The White water roses Lali (male) and Lili (female) in swimming costumes were selected as mascots of the championships.

The Hungarian National Bank issued a commemorative version of the 50 Ft circulation coin on the occasion of the 17th FINA World Championships to be held in Hungary.