Monluc, or Montluc, the name of a French family. It stemmed from the house of Lasseran-Mansencomme, which possessed the estate of Monluc in Agenais, and whose last heiress, Gersende, married a cadet from the House of Montesquiou. All its male members died at war in the lapse of a single decade and the name disappeared in the early 17th century.