Cystodermella is a genus of fungi in the family Agaricaceae.

The genus comprises about 12 species, noted for producing agaric fruit bodies, bearing a cap, white gills and stipe with a fine, ephemeral ring.

The genus was devised by Harri Harmaja in 2002, dividing the older genus Cystoderma into three independent genera: Cystoderma, Ripartitella and Cystodermella largely on the basis of microscopic differences.

Cystodermella species bear non-amyloid spores and sometimes cystidia.

[1] Species of the genus have a saprotrophic mode of nutrition, and occur around the world.