Alexander Dale Oen was a Norwegian swimmer. He represented the clubs Vestkantsvømmerne (1995–2010) and Bærumsvømmerne (2011–2012). Dale Oen's gold at the 2008 European Championships made him the first Norwegian male to win a medal at a major international long course championship.

The 2006 European Swimming Championships were held in Budapest, Hungary, from 26 July – 6 August 2006. Disciplines include swimming, diving, synchronised swimming (synchro) and open water swimming. European Water Polo Championships for 2006 were also organized by LEN, but held separately.