Nessaea hewitsonii, the Hewitson's olivewing, is a species of butterfly of the family Nymphalidae.

It is common in a broad range of the Amazon basin including the eastern slopes of the Andes mountain range.

It is found in high evergreen tropical forest, semi-deciduous tropical forest, and riverine forest.

[2] The length of the wings is 33–40 mm for males and 36–41 mm for females.

This article related to members of the butterfly subfamily Biblidinae is a stub.