Cognomen Gadev (Gadev 
) , around the globe, is a rare surname. The surname Gadev is habitual in Bulgaria, where it is quite a rare surname, Israel, where it is a very rare surname, and France, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Bulgaria, India, and Israel. Very seldom, Gadev is the forename as well as the last name.