Hypolycaena dubia, the Dubious Fairy Hairstreak, is a butterfly in the Lycaenidae family. It is found in Guinea, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Nigeria (the southern part of the country and the Cross River loop), Cameroon, the Republic of Congo, the Central African Republic, the Democratic Republic of Congo (from the southern part of the country to Shaba and the north-east) and Uganda. The habitat consists of forests.