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All over the world, Tehran (Tehran
, Техран
) is a rare principally masculine, but very infrequently girly forename. The given name Tehran is habitual in Azerbaijan, where it is quite a rare male name, Pakistan, where it is a very rare masculine name, and Iran, where it is a very rare unisex name. In absolute terms, it most frequently occurs in Azerbaijan, Pakistan, and the United States. Likewise, Tehran is the last name as well as the forename.