Prince Aleksander Dominik Lubomirski (1693–1720) was a Polish nobleman (szlachcic), starost of Sandomierz, Zator and Ryki and the IV ordynat of the Ostrogski Family Fee Tail. He was the owner of the Wià Ânicz, Dubno and Zasà Âaw estates.
He was the son of Grand Marshal of the Crown Józef Karol Lubomirski and Princess Teofila Ludwika Zasà Âawska. His paternal grandparents were Voivode of Kraków Aleksander Michaà  Lubomirski and Princess Helena Tekla Ossolià Âska. His maternal grandparents were Prince Wà Âadysà Âaw Dominik Zasà Âawski and Katarzyna Sobieska (sister of King of Poland Jan III Sobieski).