Seweryn Franciszek Czetwertyński-Światopełk

Seweryn F. Czetwertyński-Światopełk (b. April 18, 1873 in Warsaw - June 19, 1945 in Edinburgh, Scotland) was a Polish landowner and politician.

As a student in Riga, he studied at the Riga Technical University and was a member of the Polish student fraternity Arkonia.

He went on to become a member of the Russian Duma in 1906 and the Sejm from 1919 until 1935. During World War II, he was a prisoner of Nazi Germany, and was interred at both the Buchenwald and Auschwitz concentration camps.