Marcet is a surname. Notable people with the name include:
Anna Marcet Haldeman (1887–1941), American feminist, actress, civil rights advocate, bank president Albert Marcet (born 1960), Spanish economist Alexander Marcet FRS (1770–1822), Genevan-born physician, became a British citizen in 1800 Jane Marcet (1769–1858), English salonnière of Republic of Geneva descent, writer of popular science books William Marcet FRS FRCP (1828–1900), President of the Royal Meteorological Society Carlos Marqués-Marcet (born 1983), Spanish film director, screenwriter and film editor
See also Marcet Island, uninhabited island within the Arctic Archipelago in the Kitikmeot Region, Nunavut Saint-Marcet, commune in the Haute-Garonne department in southwestern France Marcet Football University or Marcet Foundation, youth education and football organization