Muellerites is a genus of fungi in the class Dothideomycetes.
The relationship of this taxon to other taxa within the class is unknown (incertae sedis).
[1] A monotypic genus, it contains the single species Muellerites juniperi.
[2] The genus name of Muellerites is in honour of Emil Müller (1920–2008), who was a Swiss mycologist.
[3] The genus was circumscribed by Lennart Holm in Svensk Bot.