Family name בלנש (בלנש 
, Blansh 
) , throughout the world, is a very rare cognomen. The surname בלנש is characteristic of Israel, where it is a rare surname, Honduras, where it is a very rare surname, and Russia, where it is an extremely rare surname. In absolute terms, this name is the most popular in Israel, India, and Russia. Also, בלנש is the forename as well as the last name.