Last name Фадави (Fadavi 
, Фадави 
) , in the world, is a rare cognomen. The family name Фадави is characteristic of Bahrain, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Iran. Measured by absolute frequency, this name is the most popular in Iran, United Arab Emirates, and the United States. Much less frequently, Фадави is the forename as well as the last name.