倭水牛是牛亚科水牛属中体型最小的成员，有3种，都分布于东南亚的一些岛屿上。两种分布于印尼原生雨林低地倭水牛高90cm,重300公斤。

This article refers to the animal. For the Indonesian-made military vehicle, see Anoa (armoured personnel carrier).

Anoa, also known as midget buffalo and sapiutan, are a subgenus of Bubalus comprising two species native to Indonesia: the mountain anoa (Bubalus quarlesi) and the lowland anoa (Bubalus depressicornis). Both live in undisturbed rainforest, and are essentially miniature water buffalo. They are similar in appearance to a deer, weighing 150–300 kg (330–660 lb).