Franz Karmasin (2 September 1901 – 25 June 1970) was an ethnic German politician in Czechoslovakia, who helped found the Carpathian German Party. During World War II he was state secretary of German affairs in the Slovak Republic, and rose to the rank of SS-Sturmbannführer.
Tried in absentia and sentenced to death, he fled to West Germany where until his death he was active in the Witikobund, a right-wing extremist organization that claimed to represent Sudeten Germans.