The Gir Forest National Park and Wildlife Sanctuary (also known as Sasan-Gir and गिर वन) is the sole home of the pure Asiatic Lions (Panthera leo persica). The Hindi name is "गिर वन". Measuring about 258 km² for the fully protected area (the National Park) and 1153 km² for the Sanctuary, the area is considered to be one of the most important protected areas in Asia due to its supported species.

Established in 1965, the total area of 1412 km² is located about 65 km to the south-east of Junagadh city of the Junagadh district in the kathiawar peninsula of Gujarat state, India.

The ecosystem of Gir, with its diverse flora and fauna, is a result of the efforts of the Government forest department, wildlife activists and NGOs. The forest area of Gir and its lions were declared as "protected" in the early 1900's by the then Nawab of the princely state of Junagadh. This initiative assisted in the conservation of the lions whose population had plummeted to only 15 through slaughter for trophy hunting.

The April 2005 census recorded the lion-count in Gir at 359, an increase of 32 compared to 2001. The lion breeding programme covering the park and surrounding area has bred about 180 lions in captivity since its inception.