Costeño is the Spanish word for "coastal". It may refer to. Costeño cheese, cheese from the Colombian Caribbean region Costeño (train), former passenger train line between Guadalajara and Heroica Nogales, Mexico Authentic Costeño Autonomy Movement, regional Nicaraguan political party Costeño Democratic Alliance, regional Nicaraguan political party Coast Peoples' Party (Spanish: Partido de los Pueblos Costeños), regional Nicaraguan political party Peruvian Ribereño Spanish, also known as Español costeño peruano, Spanish dialect of coastal Peru