Knut Magnus Olsen (born 6 May 1954) is a Norwegian politician for the Centre Party.
He's been a deputy representative to the Parliament of Norway from Sogn og Fjordane from 2005 to 2013. He hails from Jølster Municipality.
In 2010, he became secretary-general of the Centre Party. He announced in October 2025 that he would leave the position on 1 April 2026. He was succeeded by former member of parliament, Ole André Myhrvold.
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