Family name Tíu (Tio 
, Tiu 
, Tíu 
) , across the world, is a common cognomen. The family name Tíu is habitual in Guatemala, where it is quite a common surname, Philippines, and Malaysia (explore the name in all countries). Not in comparison with a country's population, the name is most common in Indonesia, Philippines, and India. Likewise, Tíu is the forename as well as the last name.