Across the world, סליו (Celio 
, סליו 
) is a common masculine first name. The first name סליו is habitual in Brazil, where it is quite a common boy's name, Portugal, where it is quite a rare male name, and Angola. Not in comparison with a country's population, it is commonest in Brazil, Mexico, and Angola. Very seldom, סליו is the last name as well as the forename.