The lesser yellow bat (Scotophilus borbonicus) is a vesper bat found only on Madagascar and Réunion.

On Réunion, it was considered common early in the 19th century, but was last sighted late in the 19th century.

Only a single specimen attributed to this species, collected in 1868, is known from Madagascar.

It was listed as a critically endangered species in 1996 due to habitat loss, and may be extinct.

This Vespertilionidae article is a stub.