FAIA (20 August 1925 – 22 June 2013) was a Danish architect.

[1] He is internationally known for the Ministry of Foreign Affairs building in Riyadh and the Copenhagen Opera House.

Larsen studied at the Royal Danish Academy of Fine Arts, from which he graduated in 1952.

[3] His mentors included Arne Jacobsen and Jørn Utzon.

From 1968 to 1995, he was a professor of architecture at the Royal Danish Academy of Fine Arts.