Family name האו (Hao 
, How 
, Howe ) , worldwide, is a widespread cognomen. The family name האו is habitual in Malaysia, where it is a common surname, Cayman Islands, where it is quite a common surname, and Macao (explore the name in all countries). In absolute terms, it is commonest in China, Malaysia, and the United States. Much less frequently, האו is the forename as well as the last name.