Ham·sun 
(hämsən, -sn′), Knut Pen name of Knut Pedersen. 1859-1952.
(hämsən, -sn′), Knut Pen name of Knut Pedersen. 1859-1952. Norwegian writer whose novels include Hunger (1890) and The Growth of the Soil (1917). He won the 1920 Nobel Prize for literature.