Last name Блаш (Blache 
, Блаш 
) , in the world, is quite a rare family name. The surname Блаш is habitual in Grenada, where it is quite a common surname, Trinidad and Tobago, where it is quite a rare surname, and France. Not in comparison with a country's population, it most frequently occurs in France, Germany, and the United States. Very seldom, Блаш is the forename as well as the last name.