Surname Banwer (Banwer 
) , all over the world, is a very rare last name. The last name Banwer is characteristic of Poland, where it is a very rare surname, the United States, where it is an extremely rare surname, and the United Kingdom. Not in comparison with a country's population, it most frequently occurs in the United States, Poland, and India. Much less frequently, Banwer is the forename as well as the last name.