Bjarni Benediktsson, Icelandic professor of law and politician, 13th Prime Minister of Iceland (died 1970)

Bjarni Benediktsson was an Icelandic politician of the Independence Party who served as prime minister of Iceland from 1963 to 1970. He was born to Benedikt Sveinsson (1877–1954), a leader in the independence movement of Iceland and a member of the Althingi from 1908 to 1931, and Guðrún Pétursdóttir frá Engey, a nationally renowned poet.

The prime minister of Iceland is head of government of the Republic of Iceland. The prime minister is appointed formally by the president and exercises executive authority along with the cabinet subject to parliamentary support.