Family name Кервин (Kerwin 
, Cervin 
, Kervyn 
) , in the entire world, is quite a common cognomen. The last name Кервин is characteristic of Aland Islands, where it is quite a common surname, Sweden, where it is quite a rare surname, and Belgium. Not in comparison with a country's population, it is commonest in the United States, Mexico, and Argentina. Also, Кервин is the forename as well as the last name.