Kári Árnason is an Iceland international footballer who plays for Aberdeen. He has also played for Víkingur, Djurgården, AGF Aarhus, Esbjerg fB, Plymouth Argyle, Rotherham United and Malmö FF. Capable of playing in midfield or defence, Kári has represented Iceland at senior international level since 2005, having made his debut against Italy.
Kári joined Heart of Midlothian on trial during their pre-season trip to Italy in June 2011, having been released by Plymouth’s administrator after refusing to defer his wages for June. Kári was not offered a contract by Hearts and then began a trial with Aberdeen. He signed for Aberdeen on 18 July and received international clearance four days later. He made his debut in a 0–0 draw against St Johnstone on 23 July and scored his first goal for Aberdeen on 15 October, the opener in a 3–1 win against Dundee United. In the return New Firm fixture on 2 January 2012, Kári scored the winning goal from 30-yards at Tannadice. He was offered a new contract in December to extend his stay with the club beyond the 2011–12 season.
His goal against Rangers in a 1–1 draw at Ibrox Stadium took his tally for the campaign to three. Kári rejected Aberdeen’s offer of a new contract towards the end of January and manager Craig Brown said that he expected him to leave in the summer. “We made Kári an exceptionally good offer. However, the player believes he can earn a better deal elsewhere,” said an Aberdeen spokesperson.
On July 14, 2017, Kári rejoined Aberdeen, for who he had played in the 2011-12 season.