Cognomen Kiol (Ceola 
, Kiol 
) , in the entire world, is quite a rare family name. The last name Kiol is characteristic of Italy, where it is quite a rare surname, Argentina, where it is a rare surname, and Belgium. Measured by absolute frequency, it is the most numerous in Italy, Brazil, and Argentina. Likewise, Kiol is the forename as well as the last name.