Cognomen Груш (Grouch 
, Grush 
, Груш 
) , across the world, is a rare last name. The surname Груш is characteristic of the United States, where it is a rare surname, Israel, and Belarus, where it is a very rare surname. Not in comparison with a country's population, this name is the most popular in the United States, Canada, and Italy. Much less frequently, Груш is the forename as well as the last name.