Cognomen Serdin (Serdin 
, Сердин 
) , in the entire world, is a rare family name. The last name Serdin is characteristic of Romania, where it is quite a rare surname, France, where it is a rare surname, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Romania, France, and Russia. Very seldom, Serdin is the forename as well as the last name.