Sophus Magdalon Buck Kahrs (28 March 1918 - 18 November 1986) was a Sturmbannfuhrer (Major) in the Waffen SS during World War II. He was awarded the Iron Cross of the I class, which was awarded to recognize battlefield bravery during World War II. He served as a the battalion commander of the SS Ski Jäger Battalion "Norwegen", seeing action in Finland in 1944, and later in Norway in 1945.