Uncinocarpus orissi is a species of microfungus that grows on dung and other keratinous materials, such as hair.

It was the third species to be designated as part of the genus Uncinocarpus by Canadian mycologists Lynne Sigler, Arlene Flis and J.W.

In culture, colonies of U. orissi are yellowish white in colour before darkening to buff or brownish-orange.

U. orissi has a heterothallic mating system, requiring two compatible "sexes" for sexual reproduction to occur.

It produces urease enzyme, allowing it to convert urea to ammonia and carbon dioxide.