Ranomi Kromowidjojo won six medals at the 2021 FINA World Swimming Championships (25m) ©Getty Images

Three-time Olympic gold medallist Ranomi Kromowidjojo has announced her retirement from competitive swimming. 

The 31-year-old, a specialist in freestyle sprint events, won her first Olympic gold in the 4x100 metres relay along with Dutch team-mates Inge Dekker, Femke Heemskerk, and Marleen Veldhuis at Beijing 2008.

The quartet set what was at the time an Olympic record, 3min 33.76sec.

Kromowidjojo followed that up with a double in the 50m and 100m individual freestyle events at London 2012. 

Kromowidjojo also earned a silver in the 4x100m freestyle event in London.

She twice finished fourth at Tokyo 2020 - in the 50m freestyle and 4x100m freestyle relay - and make four Olympic appearances in all, having also raced at Rio 2016.

"After 16 years of sport at the top level, my professional swimming career is complete," Kromowidjojo said on social media.

"Swimming will always be my passion, but not on a professional level anymore."

Kromowidjojo has a total of 39 medals from International Swimming Federation (FINA) World Championship events.

She also holds the short-course world record for the 50m freestyle with a time of 22.93sec.

Kromowidjojo won six medals at the FINA World Swimming Championships (25m) late last year, including gold in the 50m butterfly and silver in the 50m freestyle.