At the 1896 Summer Olympics, four swimming events were contested, all for men. They were planned and organized by the Sub-Committee for Nautical Sports. All events took place on 11 April in the Bay of Zea. There was a total of 13 participants from 4 countries competing.
De Coubertin, Pierre; Philemon, Timolean; Politis, N.G.; Anninos, Charalambos (1897). "Second Part: The Olympic Games in 1896". The Olympic Games: BC 776 – AD 1896(PDF). Athens: Charles Beck. Retrieved 2008-03-19.