Johann Bjarni Hjartarson, born Feb 8, 1963, is an Icelandic grandmaster (1985). He was Icelandic champion in 1980, 1984, and 2005. In 1987, he took 1st place in the Szirak Interzonal. In 1989 he lost to Anatoly Karpov (3 draws, 2 losses, no wins) in the World Semi-finals Chess Championship match, held in Seattle. He is a lawyer and is the director of legal affairs at Decode, a biopharmaceutical company.