Gunnar Þór Gunnarsson (born 4 October 1985) is an Icelandic football player who last represented KR in Pepsi deildin before retiring after the 2020 season.
He left Hammarby IF on 1 November 2007 to sign a three-year contract with IFK Norrköping.
He joined Hammarby IF before the 2006 season, leaving Icelandic club Fram.
His first international appearance for Iceland was against Spain on 28 March 2007.
This biographical article related to association football in Iceland is a stub.