Karl Nicolussi-Leck (14 March 1917 – 30 August 2008) was a mid-ranking commander in the Waffen-SS of Nazi Germany during World War II.
In the post-war years, he helped many SS personnel flee Europe.
In the late interwar period, Nicolussi-Leck helped to found the Nazi movement Völkischer Kampfring Südtirol which opposed the fascist attempts to italianize his native, widely german-speaking region South Tyrol, annexed by Italy in 1919, and backed in 1939 the South Tyrol Option Agreement.
In January 1940, Nicolussi-Leck volunteered for the Waffen-SS and served in the SS divisions Das Reich and Wiking.
He was a recipient of the Knight's Cross of the Iron Cross.
After the war, Nicolussi-Leck helped many SS personnel leave Europe for South America.
He immigrated to Argentina in 1948, but returned in the early 50's to the South Tyrol, his native region, where he worked as an entrepreneur for Mannesmann.
Karl Nicolussi-Leck died in 2008, in Bozen, South Tyrol.