Miniopterus newtoni is a species of bat that is endemic to São Tomé and Príncipe.
It has a forearm length of approximately 39 mm (1.5 in).
M. newtoni is endemic to the nation of São Tomé and Príncipe, where it has only been documented on São Tomé Island.It has been documented in both forested habitat and plantations.
As of 2019, it is evaluated as a data deficient species by the IUCN.It meets the criteria for this classification due to the lack of information on its extent of occurrence and threats it may be facing.