Kári Árnason (born 13 October 1982) is an Icelandic footballer who plays for Icelandic club Víkingur and the Iceland national team.
He has previously played for Djurgården, AGF Aarhus, Esbjerg fB, Plymouth Argyle, Aberdeen (two spells), Rotherham United, Malmö FF, Omonia and Gençlerbirligi.
Capable of playing in midfield or defence, Kári has represented Iceland at senior level since 2005, making 81 appearances and scoring 6 goals in the process.