Last name Cretino (Christianus 
, Cretino 
, Crétin 
) , all over the world, is a rare family name. The cognomen Cretino is habitual in Malaysia, where it is a rare surname, Kenya, and Switzerland. Not in comparison with a country's population, it most frequently occurs in Indonesia, Malaysia, and Kenya. More frequently, Cretino is the forename as well as the last name.