Cognomen گرگ (Gregg 
, گرگ 
) , throughout the world, is a common last name. The last name گرگ is characteristic of Saint Vincent and the Grenadines, where it is quite a common surname, Guernsey, and Saint Lucia (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in the United States, the United Kingdom, and Iran. Likewise, گرگ is the forename as well as the last name.