Louis of Clermont or Louis de Clermont may refer to:
Louis I, Count of Blois, also count of Clermont-en-Beauvaisis (1191–1205) Louis I, Duke of Bourbon, also count of Clermont-en-Beauvaisis (1317–1327, 1331–1342) Louis II, Duke of Bourbon, also count of Clermont-en-Beauvaisis (1356–1410) , bishop of Clermont (1650–1664) , bishop of Clermont (1716–1717) Louis, Count of Clermont, being Clermont-en-Argonne (1709–1771) Lewis de Claremont, pseudonym, American occultist author (fl. 1930s)