Avellaneda is a city in Gran Buenos Aires, Buenos Aires Province, Argentina.

Avellaneda may also refer to:

Places Avellaneda Department (disambiguation), two in Argentina Avellaneda Partido, Partido in Gran Buenos Aires, Buenos Aires Province, Argentina Parque Avellaneda, a barrio of Buenos Aires proper (capital district) and not identical with the provincial department Avellaneda Park, a park in Parque Avellaneda, Buenos Aires Avellaneda, Ávila, city in Castile-León, Spain , village in La Rioja, Spain , city in Santa Fe Province, Argentina , settlement in Córdoba Province, Argentina

People Alonso Fernández de Avellaneda, pseudonym of a 17th-century Spanish writer, author of an unauthorized sequel to Don Quixote Gertrudis Gómez de Avellaneda, Cuban writer of the 19th century Marco Avellaneda, mathematician Mario Avellaneda, Spanish race walker Nicolás Avellaneda, former president of Argentina

Music Avellaneda is the title of the second album on the label Rune Grammofon by the Danish electronica group Skyphone. The title is related to Alonso Fernández de Avellaneda