Last name Blagoi (Благой 
, Blagoi 
) , in all the world, is quite a rare cognomen. The last name Blagoi is characteristic of Eastern Europe, particularly Bulgaria, where it is quite a common surname, Romania, where it is quite a rare surname, and Ukraine, where it is a rare surname. Not in comparison with a country's population, it is commonest in Eastern Europe, particularly Bulgaria, Romania, and Russia. Likewise, Blagoi is the forename as well as the last name.