Last name ความว่างเปล่า (Emptiness 
, Vaidee 
, Cavaness 
) , all over the world, is a rare surname. The family name ความว่างเปล่า is characteristic of the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Canada. Not in comparison with a country's population, this name is the most popular in the United States, India, and Canada. Very seldom, ความว่างเปล่า is the forename as well as the last name.