The Annamit myotis (Myotis annamiticus) is a species of mouse-eared bat in the family Vespertilionidae, described in 2001, and indigenous to the Minh Hóa Districton the northern coast of Vietnam.

[3] Following its description, investigators succeeded in locating M. annamiticus only in Phong Nha-Kẻ Bàng National Park, and the data regarding the distribution, population, and range of the species is otherwise inadequate to determine its conservation requirements.

"[2] It is a relatively small bat with a forearm length of 30.6–34.3 mm (1.20–1.35 in) and a mean weight of 4.1 g (0.14 oz).

[2] It has been observed foraging for prey 5–15 cm (2.0–5.9 in) above the surface of small streams.

Females give birth in the spring around the end of April and beginning of May.