Family name Дио (Dio 
, Dioh 
, Дио 
) , in the entire world, is a common last name. The last name Дио is habitual in Senegal, where it is quite a common surname, Philippines, where it is quite a rare surname, and Cameroon. In absolute terms, it is commonest in Indonesia, Philippines, and Senegal. Also, Дио is the forename as well as the last name.