Prince Antoni Benedykt Konstanty Lubomirski (1718-1761) was a Polish szlachcic.He was the landowner of the Polonne, Miedzyrzecz and Miropol estates.
Major General of the Crown Army, Lieutenant General from 1753, Great Sword-bearer of the Crown from 1754.
He signed the election of Stanislaw Leszczynski in 1733.He was Marshal of the Sejm, 3 October – 14 November 1746.
He was awarded the Order of the White Eagle on 3 August 1757 in Warsaw