Gunnar Thoroddsen (pronounced [ˈkʏnːar ˈtʰouːrɔtˌsɛn]) (29 December 1910 – 25 September 1983) was the prime minister of Iceland from 1980 to 1983.
Gunnar was the youngest man ever elected to the Althing, Iceland's Parliament.
He wished to succeed his father in law, Ásgeir Ásgeirsson, who served as president from 1952 to 1968.
Gunnar and Geir were not in agreement and the disagreement led to Gunnar breaking away from the will of the Independence Party with a few members of parliament and forming a cabinet with the Progressive Party and the People's Alliance, that replaced a minority government of Benedikt Sigurðsson Gröndal.
By forming his government Gunnar became the oldest prime minister in Iceland's history at the age of 69.