Last name Dín (Dyne 
, Dín 
) , all over the world, is a rare cognomen. The cognomen Dín is characteristic of Australia, where it is a rare surname, New Zealand, and the United Kingdom. Not in comparison with a country's population, this name is the most popular in the United States, the United Kingdom, and Australia. Likewise, Dín is the forename as well as the last name.