Hysterangium is a genus of truffle-like fungi in the family Hysterangiaceae.

The genus is widespread, especially in temperate regions,[1] and contains more than 60 species.

Hysterangium was circumscribed by Italian mycologist Carlo Vittadini in 1831.

[2] As of June 2015[update], Index Fungorum lists 64 valid species of Hysterangium:[3] Another list can be found in Catalogue of Life,[6] which also lists Hysterangium atratum Rodway 1920 , Hysterangium burburianum Rodway 1918, and others.

A further species, Hysterangium bonobo, has been reported by Elliott et al. in September 2020.