Thomas Whalan (born 13 October 1980) is an Australian water polo player who competed in the 2000 Summer Olympics, in the 2004 Summer Olympics (Vice-Captain), in the 2008 Summer Olympics (Captain) and in the 2012 Summer Olympics representing Australia in over 350 internationals. Thomas captained the Aussie Sharks to successive World League Bronze Medals in 2007 & 2008 and was voted by World Water Polo Magazine as one of the world’s top defenders. Thomas Whalan served as a director of Water Polo Australia (WPA) 2012-2019 and on 25 November 2017.