Jens Mogens Boyesen (9 October 1920 – 20 November 1996) was a Norwegian diplomat and politician for the Labour Party.
He was born in Kristiania as a son of deputy under-secretary of state Einar Theiste Boyesen (1888–1972) and Borghild Koppang (1888–1978).
[1] At the time Norway was invaded by Germany in 1940, Boyesen was a law student and member of the Labour Party.
[5] The Labour cabinet Nygaardsvold fled to London in order to avoid an early capitulation.
Boyesen was instead sent to Geneva to serve as ambassador to the international organizations seated in that city,[7] including the European Free Trade Association.
[7] When the first cabinet Bratteli assumed office in 1971, Boyesen was tipped by newspapers to take over as Minister of Foreign Affairs.