Harald Kivioja (since 1935 Grünberg; 7 July 1908 – 7 March 1978) was an Estonian sport shooter.[1]
He was born in Nursi Rural Municipality, Võru County.
He began his shooting career in 1928. He won 12 medals at ISSF World Shooting Championships. He was 6-times Estonian champion in different shooting disciplines. 1936–1939 he was a member of Estonian national sport shooting team.
In 1944, he fled the Soviet re-occupation of Estonia to Germany, and in 1946, he emigrated to Sweden. He died in Borås, Sweden in 1978.