Cognomen Tsiao (Цяо 
, Tsiao 
) , in all the world, is a very rare surname. The last name Tsiao is characteristic of New Zealand, where it is a very rare surname, Kazakhstan, and the United States, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in the United States, Russia, and Kazakhstan. Very seldom, Tsiao is the forename as well as the last name.