María de las Mercedes of Spain
María de las Mercedes of Spain means the following persons:
- Maria de las Mercedes d'Orléans-Montpensier (1860–1878), daughter of Antoine d'Orléans Duke of Montpensier, wife of Alfonso XII. King of Spain
- María de las Mercedes de Borbón (1880–1904), daughter of Alfonso XII. King of Spain, wife of Carlos Maria de Bourbon
- María de las Mercedes de Borbón y Orléans (1910–2000), daughter of Carlos Maria de Bourbon, wife of Juan de Borbón y Battenberg