Cognomen Galiu (Gallia 
, Galiu 
) , across the world, is quite a rare last name. The family name Galiu is habitual in Slovakia, where it is quite a rare surname, Italy, and Argentina, where it is a rare surname. Not in comparison with a country's population, it is commonest in Italy, the United States, and the Democratic Republic of the Congo. More frequently, Galiu is the forename as well as the last name.