Commerson's roundleaf bat (Macronycteris commersoni), also known as Commerson's leaf-nosed bat, is a species of bat endemic to Madagascar. It is named after French naturalist Philibert Commerson (1727-1773). Bat populations of Africa or São Tomé and Príncipe formerly considered part of this species are now classified separately as M. gigas, M. thomensis or M. vattatus, while one from Madagascar was split off to become M. cryptovalorona. It was formerly placed in the genus Hipposideros, but moved to the resurrected Macronycteris in 2017 on the basis of molecular evidence.

The species is found in forests of several types on Madagascar, including dry deciduous forest, littoral forest and gallery forest, at elevations from sea level to at least 1350 m. It roosts in caves, on mature trees and in buildings. While its habitat is largely intact forest, it sometimes feeds near or in villages.

The individuals in this gallery were photographed in Dzangha Ndoki National Park Central African Republic. ID was given locally by naturalists. The above literature states they are Malagasy but I am sticking with this ID until I learn otherwise.