Maino is a surname. Notable people with the surname include:
Antonio Maino (born 1951), Italian athlete Cristian Maino (born 1971), Argentine sprint canoer Juan Maino (died c. 1976), Chilean political activist Lucy Maino (born 1995), Papua New Guinean footballer and beauty pageant titleholder Mauro Maino (born 1966), Italian male curler Paolo Maino (born 1989), Italian footballer Sonia Gandhi (born 1946), Indian politician, Theodore C. Maino (1913–1997), American diplomat