Family name Rybov (Рыбов 
, Rybov 
) , around the world, is a very rare last name. The surname Rybov is characteristic of Denmark, where it is a rare surname, Belarus, and Spain, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Russia, Belarus, and Denmark. Much less frequently, Rybov is the forename as well as the last name.