The Fiestas del Pilar are an annual festival celebrated in the city of Zaragoza, Aragon, in honour of the patron saint of the city, the Virgen del Pilar. The week long festival takes place every year, usually, beginning the weekend of or before 12 October, and lasts until the following Sunday.

The title of Fiesta of International Tourist Interest is an honorary distinction that is given by the General Secretariat of Tourism of the Ministry of Industry, Trade and Tourism of the Government of Spain to the fiestas, festivals or events in Spain involving manifestations of cultural and popular tradition, with particular regard to their ethnic characteristics and special importance as international tourist attractions. This honorary title was established in 1979.