Cognomen Хау (Hau 
, Khaou 
, Xau 
) , all over the world, is a common surname. The last name Хау is characteristic of Malaysia, where it is quite a common surname, Hong Kong, and Bermuda (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Malaysia, Mexico, and Hong Kong. Much less frequently, Хау is the forename as well as the last name.