Last name تادي (Tadej 
, Taddy 
, Taddei 
) , around the world, is a common family name. The family name تادي is habitual in San Marino, where it is a common surname, British Virgin Islands, where it is quite a common surname, and Slovenia, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Italy, France, and the United States. Also, تادي is the forename as well as the last name.