Last name クー (Ku 
, Koo , Coo 
) , in the entire world, is a widespread family name. The cognomen クー is characteristic of Macao, where it is a common surname, Hong Kong, and Bermuda, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it is the most numerous in India, Mexico, and China. More frequently, クー is the forename as well as the last name.