David Davies, who won two Olympic medals during a decade of representing Great Britain has said he will no longer be competing.
He won a 1500m freestyle bronze medal in Athens in 2004 at the age of 19. He then went on to win an open water silver in Beijing four years later.
The 27-year-old made his international debut swimming for Wales at the Commonwealth Games in Manchester in 2002 and followed it up a year later with a fourth place in his first World Championships.
In his 10-year spell on the international scene, the three-time Olympian has won medals in the 1500m freestyle at every level of international competition.
David Davies's new position will be with Sport Wales where he will help inspire the next generation of Olympians swimmers.