Katinka Hosszú (born 3 May 1989) is a Hungarian competitive swimmer and businesswoman. Hosszú is a five-time long-course world champion and world record holder in multiple events. She has swum at three Summer Olympics: 2004, 2008, and 2012. She currently swims for the Vasas SC, under head coach Shane Tusup. She is one of the most versatile swimmers in the world, and was nicknamed the "Iron Lady", which she has since turned into a fast growing International brand. Hosszú holds two-thirds of the Hungarian national records and is sponsored by swimsuit brand Arena, Audi, Insurance company Groupama, and Hungarian Syrup Company Piroska. She also founded and runs Toos Sports Agency (TSA) an International Sports agency and Management Company out of Budapest, Hungary.