Prince Stefan Lubomirski (1862 - 1941) was a founder of the Polish Olympic Games Committee (later the Polish Olympic committee, PKOL), becoming its first president (its next president being his cousin, Prince Kazimierz Lubomirski), and a member of the International Olympic Committee.
Prince Stanisław Sebastian Lubomirski established the central union of Polish industry Leviatan, where he was the president from 1932.