Last name 罗桑 (Rosann 
, 罗桑 
) , across the world, is a very rare family name. The cognomen 罗桑 is habitual in Germany, where it is an extremely rare surname, Venezuela, and Italy. In absolute terms, it is commonest in the United States, India, and China. Predominantly, 罗桑 is the forename as well as the last name.