Dejan Koà ¡ir (born 30 January 1973 in Jesenice, SR Slovenia), is a former Slovenian snowboarder.
Koà ¡ir competed at 2002 and 2006 Winter Olympics. He won 11 races in the World cup, in parallel slalom and giant slalom. In 2003, Koà ¡ir was awarded Slovenian Sportsman of the year.