Louise Françoise Marie Laure d'Orléans (24 February 1882 – 18 April 1958) was a Princess of the Two-Sicilies and maternal grandmother of King Juan Carlos I of Spain.
Louise was the youngest daughter of Philippe d'Orléans (1838–1894), Count of Paris and claimant to the French throne as "Philippe VII".
Her mother was Princess Marie Isabelle d'Orléans (1848–1919), daughter of Antoine, Duke of Montpensier, and Infanta Luisa Fernanda of Spain.