Allographa leptospora is a species of script lichen in the family Graphidaceae.

The lichen was first formally described in 1921 by Finnish lichenologist Edvard August Vainio as Graphis leptospora.

The type specimen was collected in 1904 by German botanist Carl Curt Hosseus on Doi Suthep (Chiang Mai Province, Thailand), where it was found growing on tree bark.

[3] In 2016, the lichen was reported from the Sintra Mountains, Portugal, which was its first documented occurrence in Europe.

[4] Allographa leptospora has a whitish thallus with thick, striated lirellae.