Leucocoprinus dunensis is a species of mushroom-producing fungus in the family Agaricaceae.

[1] It was described in 2023 by the mycologists Salomé Urrea‑Valencia, Rodolfo Bizarria Júnior, Pepijn W. Kooij, Quimi Vidaurre Montoya and Andre Rodrigues who conducted a study on fungal species cultivated by lower attine ants which described the new species Leucocoprinus dunensis and L. attinorum.

[2] Leucocoprinus dunensis is a fungus cultivated by Mycetophylax morschi ants.

[2] Cap: 3.5-4cm wide, starting campanulate before expanding to applanate with age.

[2] The specific epithet dunensis is named in reference to the dune ecosystem in which Mycetophylax morschi lives.