Surname Блеха (Blecha 
, Блеха 
) , around the world, is quite a rare cognomen. The cognomen Блеха is characteristic of Czechia, where it is quite a common surname, Slovakia, where it is quite a rare surname, and Austria. Not in comparison with a country's population, it is commonest in Czechia, the United States, and Austria. Much less frequently, Блеха is the forename as well as the last name.