Surname Яу (Yau 
, Яу 
) , worldwide, is a widespread cognomen. The surname Яу is habitual in Hong Kong, where it is a common surname, Bermuda, and Cayman Islands (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Nigeria, Hong Kong, and Malaysia. Also, Яу is the forename as well as the last name.