Heteroacanthella is a genus of fungi in the order Auriculariales.

Basidiocarps (fruit bodies) are corticioid (effused, patch-forming) with smooth surfaces and occur on dead, attached wood or on lichens.

[1] They are microscopically distinctive in having acanthoid (spiny) basidia with just one or two large sterigmata producing large, globose to ellipsoid basidiospores.

[2] The genus occurs worldwide, though individual species may be localized.

[2] Three species have been described to date.