Gunnar Alexander Huseby (4 November 1923 – 28 May 1995) was an Icelandic track and field athlete who competed in the shot put and discus throw events. He won consecutive gold medals at the European Athletics Championships in 1946 and 1950, becoming Iceland's first European champion in athletics. This placed him among the country's first top international sportsmen, following its independence in 1944. He remains the only Icelandic athlete to win two European athletics titles.