Myahnia is a monotypic genus of spiders in the family Hahniidae containing the single species, Myahnia kanpetlet.
Myahnia kanpetlet is endemic to Myanmar.
The genus name is a combination of Myanmar and Hahnia.
The specific name refers to the type locality Kanpetlet in West Myanmar.
Myahnia can be distinguished from Hexamatia by its larger size and differences in male palpal structure.