Calogaya is a genus of lichen-forming fungi belonging to the family Teloschistaceae.

It has 19 species.

[2] The genus was circumscribed in 2013 by Ulf Arup, Ulrik Søchting, and Patrik Frödén.

[3] The generic name Calogaya ("spectacular Gaya") honours Dr. Ester Gaya (fl.

2001), a Spanish botanist from the University of Barcelona.