Zoológico de Luján, Former zoo near Luján, Buenos Aires Province, Argentina

The Zoológico de Luján was a 15-hectare zoo on the Acceso Oeste at kilometre 58, near the Luján partido west of Buenos Aires. It opened on 24 November 1994 with a small collection: a monkey, two donkeys, two ponies, llamas, deer, a pair of lions and peacocks. It later held over 50 lions, 20 Bengal tigers, 12 pumas, some 50 South American monkeys, dromedaries and Sumatran elephants. It closed in 2020.

The Zoológico de Luján opened on 24 November 1994 on 15 hectares beside the Acceso Oeste, starting with a monkey, two donkeys, two ponies, llamas, deer, a pair of lions and peacocks. Later species arrived through donations, exchanges and purchases from breeders. After complaints of animal mistreatment, the national Environment Ministry ordered its closure on 9 September 2020, and it was shut definitively five days later.

The zoo was known for hands-on contact with wild animals: visitors could hold lion cubs, enter cages of adult lions and tigers, ride a lion's back, stroke a tiger or feed it milk, and feed a brown bear through the bars. In 2012 TBS television called it "Argentina's most amazing zoo"; critics called it the world's most controversial zoo.

The site lies at kilometre 58 of the Acceso Oeste (Gaona), near Luján in Buenos Aires province, on 15 hectares. It closed definitively on 14 September 2020 after the national Environment Ministry ordered its closure, so there is no visiting. Animals were moved to sanctuaries abroad, including 30 big cats sent in August 2026 to South Africa and the United States.

The zoo held three of Argentina's four monkey species: the black howler (carayá-hú), the night monkey (mirikiná) and the capuchin (caí). Most were donated by private owners who kept them as pets, while others were seized by authorities or born in the zoo itself.