>
Surname Banach (Banach , Банах , בנך ) , throughout the world, is a common cognomen. The last name Banach is characteristic of Poland, where it is quite a common surname, Ukraine, where it is quite a rare surname, and Ireland, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Poland, the United States, and Ukraine. Also, Banach is the forename as well as the last name.