In all the world, Ergey (Ергей 
, Ergey 
, Ергеы ) is quite a rare male forename. The first name Ergey is characteristic of Belarus, where it is quite a rare boy's name, Russia, where it is a rare male name, and Kazakhstan, where it is a very rare male name. In absolute terms, this name is the most popular in Russia, China, and Belarus. Also, Ergey is the last name as well as the forename.