Maia is a Portuguese surname. Notable people with the surname include:
Alfredo Maia (born 1962), Portuguese politician
Bruna Reis Maia (born 1995), Brazilian actress and model, known as Bruna Marquezine
Beatriz Haddad Maia (born 1996), Brazilian professional tennis player
César Maia (born 1945), mayor of Rio de Janeiro, Brazil
Circe Maia (born 1932), Uruguayan poet and translator
Deidson Araújo Maia, a.k.a. Veloso, (born 1983), Brazilian footballer
Demian Maia (born 1977), Brazilian jiu-jitsu and mixed martial arts fighter
Gonçalo Mendes da Maia (c.1079–1170), Portuguese knight
Luizão Maia (1949–2005), Brazilian musician
Mel Maia (born 2004), Brazilian actress
Miguel Maia (born 1971), Portuguese beach volleyball player
Nuno Leal Maia (born 1947), Brazilian actor
Salgueiro Maia (1944–1992), Portuguese captain during the Carnation Revolution
Tim Maia (1942–1998), Brazilian musician