Theraphosa is a genus of South American tarantulas that was first described by Charles Athanase Walckenaer in 1805.

As of May 2020[update] it contains three species, found in Guyana, Brazil, Venezuela, and Colombia.

Tarantulas of this genus are characterized by their large size, and the lack of long hairs in the patella and tibia sections of the legs.

It can also be further distinguished by the presence of stridulating hairs on the prolateral coxae 1 and 2.

[3] These tarantulas are found in holes in the ground, usually abandoned burrows, which they adopt and use as their own.