Cognomen 비오 (Pius 
, 비오 
, Viau 
) , across the world, is a widespread surname. The last name 비오 is habitual in Sub-Saharan Africa, particularly Tanzania, where it is quite a common surname, Nigeria, and Namibia (explore the name in all countries). Measured by absolute frequency, it is commonest in Sub-Saharan Africa, particularly Nigeria, Tanzania, and Uganda. Also, 비오 is the forename as well as the last name.