Martti Juhani Miettunen (17 April 1907 – 19 January 2002) was a Finnish politician who served twice as Finland's prime minister, from 1961 to 1962 and again from 1975 to 1977.

[3] Miettunen was born in Simo, the son of a smallholder.

He was awarded the honorary title of Counsellor of State in 1977.

[4] Miettunen served as a cabinet minister for 4,300 days, the eighth-longest period of service in Finnish political history.

He died at the age of 94 in the Kauniainen military hospital near Helsinki in early 2002.