Lhuillier, L'Huillier or Luillier is a surname. Notable people with the surname include:

Alberto Ruz Lhuillier (1906–1979) Mexican archaeologist Beatriz Lucero Lhuillier, wife of Jean Henri Lhuillier, Filipino winner of the 1992 Olympics bronze medal in taekwondo Jean Henri Lhuillier, son of Philippe Jones Lhuillier; Filipino entrepreneur Émilie L'Huillier Philippe Jones Lhuillier, Filipino Ambassador to Portugal Monique Lhuillier, Filipino fashion designer Marie Françoise L'Huillier de La Serre, French aristocrat and first wife of Jean-Baptiste Berthier (1721–1804) Victor Gustave Lhuillier (1844–1889), French engraver and etcher Waldeck L'Huillier (1905-1986), a French politician

See also Fort L'Huillier, a former fort in Minnesota, US, named for Rémy-François L'Huillier Brand & L'Huillier, an armsdealer and manufacturer of the 12 cm Luftminenwerfer M 16 during World War I Cebuana Lhuillier, a pawnbroking business in the Philippines M Lhuillier, a non-banking financial services company in the Philippines