Eupithecia atacama is a moth in the family Geometridae. It is found in the regions of Antofagasta (Antofagasta Province) and Atacama (Huasco Province) in Chile. The habitat consists of the North Coast and Intermediate Desert Biotic Provinces.
The length of the forewings is about 8.5âÂÂ9 mm for males and 8.5âÂÂ10 mm for females. Adults have been recorded on wing in September, October and November.