Maes or Maës is a Dutch and Spanish (Maes/e) patronymic surname. It is the third most common surname in Belgium (25,683 people). Notable people with the surname include:
Maes Andreas Maes (1514–1573), Flemish priest, humanist and student of Syriac Brian Maes (born 1956), American musician Camillus Paul Maes (1846–1915), Belgian-born bishop in the United States Caroline Maes (born 1982), Belgian tennis player Femke Maes (born 1982), Belgian footballer Friedrich-Wilhelm Maes (1913–1945), German military commander Gino Maes (born 1957), Belgian footballer Godfried Maes (1649 – 1700), Flemish painter Hermine Maes, Belgian behavior geneticist Isaak Maes (born 2001), American musician Jef Maes (1905–1996), Belgian composer and violinist Jules Maes (1882-?), Belgian fencer Kevin Maes, American politician Kristof Maes (born 1988), Belgian football goalkeeper Lieve Maes (born 1960), Belgian politician Louis Maes (born 1913, date of death unknown), Belgian canoer Merel Maes (born 2005), Belgian high jumper Natacha Maes (born 1964), Belgian racing cyclist Nelly Maes (born 1941), Belgian politician Nicolaes Maes (1634–1693), Dutch Baroque painter Nicole Maes (born 1974), Dutch politician Nikolas Maes (born 1986), Belgian racing cyclist Pattie Maes (born 1961), Media Arts professor at MIT Peter Maes (born 1964), Belgian footballer Romain Maes (1913–1983), Belgian cyclist, winner of Tour de France 1935 Sven Maes (born 1973), Belgian DJ and trance music producer Sylvère Maes (1909–1966), Belgian cyclist, winner of Tour de France 1936 and 1939 Virginia Orr Maes (1920–1986), American malacologist
Maës Eugène Maës (1890–1945), French footballer Tove Maës (1921–2010), Danish actress of stage, television and film
Others Maes is also a Welsh or Brythonic word for "field". It is pronounced "Mize", and is a possible etymological source of that name as well.
See also Maas (surname) Maëlys, French feminine name of Breton origin