Family name Гадев (Gadev 
, Гадев 
) , all around the world, is a rare cognomen. The family name Гадев is habitual in Bulgaria, where it is quite a rare surname, Israel, where it is a very rare surname, and Russia. Measured by absolute frequency, this name is the most popular in Bulgaria, India, and Russia. Much less frequently, Гадев is the forename as well as the last name.