Miniopterus newtoni is a species of bat that is endemic to São Tomé and Príncipe.

[1] Miniopterus newtoni was described as a new species in 1889 by Portuguese zoologist José Vicente Barbosa du Bocage.

[2] In the third edition of Mammal Species of the World, Simmons et al. considered M. newtoni as a subspecies of the least long-fingered bat, M. minor.

Juste et al. published that M. newtoni and M. minor had a genetic distance significant enough to regard each as separate species.

It meets the criteria for this classification due to the lack of information on its extent of occurrence and threats it may be facing.