Aron Einar Malmquist Gunnarsson (born 22 April 1989) is an Icelandic professional footballer who plays for Welsh club Cardiff City. He can play either at right back or in central midfield.
He began his career at Þór Akureyri, and played one match for Dutch club AZ before joining England's Coventry City in 2008. After 133 matches and 7 goals in three seasons for them, he transferred to Cardiff City, where he was a runner-up in the 2012 Football League Cup Final and played in the 2013–14 Premier League.
Aron plays for Iceland at international level, having made his senior debut in 2008, and has earned over 70 caps for them. He has been Iceland's captain since mid-2012, skippering them to the quarter-finals at their first major tournament, UEFA Euro 2016.