Schismatomma is a genus of mostly lichen-forming fungi in the family Roccellaceae.
Schismatomma leucopsarum was assessed as a Critically Endangered species in 2023 for the IUCN Red List. The lichen is known from only a single location in the municipality of Honda, Cundinamarca Department, where it is threatened by deforestation for timber extraction and expansion of industrial areas. Despite surveys in similar habitats, the species has not been rediscovered since its initial collection.
, Species Fungorum (in the Catalogue of Life) accepts seven species of Schismatomma, although many more than this have been named.