Family name 調 (Tiu 
, 調 
, Shirabe 
) , across the world, is a common last name. The cognomen 調 is habitual in Guatemala, where it is quite a common surname, Philippines, and Hong Kong, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in Philippines, India, and Guatemala. Much less frequently, 調 is the forename as well as the last name.