Family name ง้าว (Ngao 
, ง้าว, Halberstater 
) , in the world, is a common cognomen. The surname ง้าว is characteristic of Tanzania, where it is quite a rare surname, Kenya, and Hong Kong. Not in comparison with a country's population, the name is most common in Tanzania, Kenya, and Taiwan. Much less frequently, ง้าว is the forename as well as the last name.