Throughout the world, Gadan (Gadan 
, Гадан 
) is quite a rare unisex first name. The forename Gadan is habitual in Israel, where it is quite a rare principally feminine, but very seldom boy's name, Tajikistan, where it is quite a rare boy's name, and India, where it is a rare largely masculine, but seldom female name. Likewise, Gadan is the last name as well as the forename.