Árni Már Árnason (born 9 October 1987, Mosfellsbær, Iceland) is an Olympic and national record holding swimmer from Iceland.
He swam for Iceland at the 2008 Olympics.
He has swum for Iceland at:
Olympics: 2008, 2012
Games of the Small States of Europe: 2009 and 2011
European Junior Championships.At the 2008 Olympics, he set the Icelandic Record in the 50 free at 22.81.From 2008-12, he has attended college and swam collegiately for the USA's Old Dominion University.