Hewitsonia kirbyi, the Kirby's tiger blue, is a butterfly in the family Lycaenidae.

It is found in Nigeria, Cameroon, Gabon, the Republic of the Congo, Angola, the Democratic Republic of the Congo and Zambia.

[2] The habitat consists of forests.

The larvae feed on lichen on the bark of trees.

The name honours two entomologists William Chapman Hewitson and William Forsell Kirby.