Costa (Italian: [ˈkɔsta], Portuguese: [ˈkɔʃtɐ, ˈkɔstɐ], Galician: [ ˈkɔstɐ], Spanish: [ ˈkosta], Catalan: [ˈkɔstə, ˈkɔsta]), sometimes Costas, da Costa, Da Costa, or Dalla Costa, is an Italian, Spanish, Portuguese, and French surname. The surname spread throughout the world through colonization.