Cognomen Gyn (Gyn 
, Гын 
) , around the world, is quite a rare surname. The cognomen Gyn is habitual in Malaysia, where it is quite a rare surname, Myanmar, and Hong Kong, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Myanmar, Malaysia, and Algeria. Very seldom, Gyn is the forename as well as the last name.