The Amazonian Antshrike (Thamnophilus amazonicus) is a species of bird in the Thamnophilidae family, the antbirds. It occurs in the Amazon Basin of Brazil, and east to Maranhão state; also Amazonian Colombia, Peru, and Bolivia. It is in the Guianas in Guyana, Suriname and French Guiana, also two regions of Venezuela.

Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical swamps.

The Amazonian Antshrike is found in the entire Amazon Basin and the Guianas, minus a small region in southwestern Venezuela and Roraima state Brazil in the northwest section of the Basin.