Surname Bretanya (Bretaña 
, Bretanya 
, Gran Bretaña 
) , around the world, is a rare family name. The last name Bretanya is habitual in Spain, where it is a rare surname, Argentina, and Venezuela, where it is a very rare surname. Not in comparison with a country's population, it most frequently occurs in Spain, Argentina, and Philippines. Much less frequently, Bretanya is the forename as well as the last name.