Larráinzar may refer to:
People Domingo Larrainzar (born 1969), Spanish former footballer Iñigo Larrainzar (born 1971), Spanish retired footballer Manuel Larráinzar (1809-1884), Mexican conservative politician María Ernestina Larráinzar Córdoba (1854-1925), Italian-born Mexican writer, teacher, religious order founder Oier Larraínzar (born 1977), Spanish retired footballer
Places Larráinzar, municipality in Chiapas, Mexico San Andrés Larráinzar, town in Chiapas, Mexico