Gass Forest Museum, Forestry museum in Coimbatore, India

Gass Forest Museum is a government-run natural history museum on Cowley Brown Road, in the Forest College Campus in Coimbatore. Its long single-storey building is painted dark red with cream trim: a round-arched entrance with columns, a crest and a round window above, and three arched windows with pediments on the right. It holds forestry specimens and a 3D wildlife diorama.

J. A. Gamble, Conservator of Forests for Madras Presidency, first proposed a forest museum in the late 19th century but the plan lapsed. His successor Horace Archibald Gass opened the Forest Museum at Coimbatore on 15 April 1902, with Baron Ampthill, Governor of Madras, presiding. After Gass retired in 1905, curator F. A. Lodge renamed it in his honour; the building was expanded in 1905 and 1915.

The museum's name honours Horace Arichibald Gass, the first curator, renamed by his successor F. A. Lodge after Gass retired in 1905. The grounds also hold the Tamil Nadu Forest Academy, founded in 1912 as the Madras Forestry College to train foresters.

The museum sits in the Forest College Campus on Cowley Brown Road, in central Coimbatore, sharing the grounds with the Tamil Nadu Forest Academy, the Institute of Forest Genetics and Tree Breeding and the Central Academy for State Forest Service. It reopened to the public on 1 May 2015 after renovation, so check current opening days before travelling.

The museum's name honours Horace Arichibald Gass, the first curator, renamed by his successor F. A. Lodge after Gass retired in 1905. Between 1942 and 1947 the closed buildings sheltered World War II evacuees from Malta and Greece. A 3D diorama of wildlife in its natural habitat was added when the museum reopened on 1 May 2015.