Surname هاردن (Hardin 
, Harden , Harnden 
) , in the world, is a common cognomen. The surname هاردن is habitual in the United States, where it is quite a common surname, New Zealand, where it is quite a rare surname, and Mauritius. Not in comparison with a country's population, it most frequently occurs in the United States, the United Kingdom, and Canada. Very seldom, هاردن is the forename as well as the last name.