Cognomen ク (Ku 
, ク 
) , across the world, is a widespread last name. The last name ク is habitual in Macao, where it is a common surname, Hong Kong, where it is quite a common surname, and Bermuda (explore the name in all countries). Measured by absolute frequency, this name is the most popular in India, Mexico, and China. More prevalently, ク is the forename as well as the last name.