Princess Maria Klementyna Sanguszko (30 March 1830 – 17 October 1903) was a Polish noblewoman, heiress, and the wife of politician Alfred Józef Potocki.

Maria was the only child of Roman Sanguszko and his wife Natalia Potocka, Polish aristocrats and members of some of the wealthiest and most notable families of the former Polish–Lithuanian Commonwealth.

[citation needed] Her mother died soon after giving birth to her and her father was absent during her childhood as he was imprisoned from June 1831 until 1838 due to his participation in the November Uprising against Russia, and travelled extensively afterwards.

She was a naturally meticulous and organised person which made her duties of setting up events like balls and banquets all the easier for her.

[citation needed] She then transferred the Potocki family's palace in Antoniny, Ukraine to her younger son Jósef.