The Guam flying fox (Pteropus tokudae), also known as the little Marianas fruit bat, is an extinct species of small megabat endemic to Guam in the Marianas Islands in Micronesia that was confirmed extinct due to hunting or habitat changes.

The last specimen was a female found roosting at Tarague cliff in March 1967, but it escaped capture.

[6] Little is known about the behaviour of this flying fox, but it is likely that it fed on the fruits, flowers, and foliage of evergreen shrubs and trees that are characteristic of the limestone forests found in the northern part of Guam.

Similarly, not much is known about its reproductive habits, but an incident in 1968, where a female was shot, revealed that she was accompanied by an immature individual.

Another factor may have been the introduction, into the island, of the predatory brown tree snake (Boiga irregularis).