Knut Domaas (1873–1959) was a Norwegian newspaper editor.
He was born in Lesja. He started working in the newspaper Kysten in 1902 and became editor-in-chief in 1903. He started working in the newspaper Norges Handels- og Sjøfartstidende in 1912 and was editor-in-chief from 1914 to 1943.[1][2] In the 1930s he was a member of the council of Norges Forsvarsforening.[3]