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Cognomen Lahti (拉蒂 , Lahti
, لاتي
) , in the world, is a common surname. The family name Lahti is habitual in Northern Europe, particularly Finland, where it is a common surname, Sweden, where it is quite a rare surname, and Estonia. Not in comparison with a country's population, this name is the most popular in Finland, the United States, and Sweden. Much less frequently, Lahti is the forename as well as the last name.