Prince Antoni Benedykt Konstanty Lubomirski (1718–1761) was a Polish szlachcic.

[1] He was the landowner of the Połonne, Międzyrzecz and Miropol estates.

He signed the election of Stanisław Leszczyński in 1733.

[2] 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