Mow is a Chinese surname shared by several notable people.
In these cases, the origin is through the Chinese hanzi 毛, where the use as a surname derives from the feudal title translated as "Earl Mao", establishing a relationship between the surnames "Mao" and "Mow" as having the same origin.[1]
Another origin is through the traditional Chinese hanzi 憲, which has several meanings as both a verb and a noun.[2]