Celastrina nigra, the dusky azure, is a butterfly in the family Lycaenidae.

The species was first described by William Trowbridge Merrifield Forbes in 1960.

It resides in the extreme northeast corner of the U.S. state of Georgia.

[2] The larval host plant is Aruncus dioicus (goat's beard).

This Polyommatini-related article is a stub.