The brand’s official title is official sponsor and technical partner of the event, which is taking place in Kazan, Russia.
The announcement follows record sales and profits for Arena.
Cristiano Portas, Arena CEO, says: “Swimming is our life at Arena and so to be even more closely involved with swimming’s premier events makes us very proud, besides representing a real boost for the growth of the brand.
“To be at the forefront of the sport and to pursue our strategy of being a true partner in the leadership of global aquatic sports is the reason we come to work every day and this reinforcement of our partnership with FINA represents the ideal opportunity to give back to the sport that has given us so much.”