Family name グ (Ku 
, Goo , グ 
) , in all the world, is a widespread last name. The last name グ 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). In absolute terms, the name is most common in India, Mexico, and Indonesia. More frequently, グ is the forename as well as the last name.