Last name ワッツ (Wataru 
, Watts 
, ワッツ ) , in all the world, is a widespread surname. The cognomen ワッツ is characteristic of Antigua and Barbuda, where it is quite a common surname, Isle of Man, and the United Kingdom (explore the name in all countries). Measured by absolute frequency, the name is most common in the United States, the United Kingdom, and Australia. Very seldom, ワッツ is the forename as well as the last name.