Last name Mairin (Mairin 
, Máirín , Майрин 
) , in all the world, is a rare cognomen. The cognomen Mairin is characteristic of Venezuela, where it is quite a rare surname, Malaysia, where it is a rare surname, and Honduras. Not in comparison with a country's population, the name is most common in Venezuela, Indonesia, and Malaysia. Also, Mairin is the forename as well as the last name.