Ivar Olaus Nordkild (born 14 May 1941) is a former Norwegian biathlete. He competed for Norway and won a gold medal in the 1965 Biathlon World Championships in Elverum in the team competition. He won a second gold medal in the men's relay in the 1966 world championships in Garmisch-Partenkirchen and a silver medal in the same event in 1971.