水牛属（学名Bubalus），是牛科的一属，包括四种现存的水牛：

• 水牛 Bubalus bubalus
• 民都洛水牛 Bubalus mindorensis
• 低地倭水牛 Bubalus depressicornis
• 山地倭水牛 Bubalus quarlesi

Bubalus is a genus of bovines that was first described by Charles Hamilton Smith in 1827. This genus comprises the following living species:

The nomenclature and classification of domestic animals as species, subspecies, races or breeds has been discussed controversially for many years and was inconsistent between authors. Assessors of the Food and Agriculture Organisation consider domestic water buffalo populations as breeds.