Black fungus may refer to:
Mucormycosis, an infection of sinuses, brain, lungs or other areas informally known as "black fungus" and sometimes associated with COVID-19 Wood ear, several species of edible fungus known as black fungus Boletus aereus, an edible mushroom known as ontto beltza (black fungus) in Basque Black yeast, a group of slow-growing microfungi with melanin in their cell walls
See also
Black fungus beetle, a species of darkling beetle Black fungus moth, a moth found in the United States Black fungus gnat, (Asindulum nigrum), a species of fly Black mold