Brefeldia is a genus of slime molds in the family Amaurochaetaceae.

[1] The genus name of Brefeldia is in honour of Julius Oscar Brefeld (1839 – 1925), a German botanist and mycologist.

[2] The genus was circumscribed by Józef Tomasz Rostafínsky in 1873 and appears to be monotypic, containing the species Brefeldia maxima.

[3]