Cognomen Atio (Atio 
) , across the world, is a rare family name. The last name Atio is characteristic of Papua New Guinea, where it is quite a rare surname, Israel, where it is a rare surname, and Canada, where it is an extremely rare surname. In absolute terms, the name is most common in Papua New Guinea, Israel, and Nigeria. Very seldom, Atio is the forename as well as the last name.