Water polo player Aidan Roach represented Australia at the London 2012 Olympics and the Rio 2016 Olympics.

Since his debut on the national team in 2009, Roach has been a consistent member of the of the Aussies Sharks squad. In 2015 he was part of the Australian team that created history by winning its first gold medal at a major international event after they defeated Brazil to take victory at the FINA World League Intercontinental Cup.

Roach and his Aussie Sharks teammates narrowly defeated Spain to claim bronze at the 2019 FINA World League Super Final.

Roach is a member of the NSWIS Athlete Advisory Group.