Surname Ragnhildr (Ragnhild 
, Raonaid 
, Ragnhildr) , all around the world, is a very rare family name. The surname Ragnhildr is habitual in Norway, where it is a rare surname, Hungary, where it is a very rare surname, and Spain. Not in comparison with a country's population, it is the most numerous in Norway, Spain, and China. Much more prevalently, Ragnhildr is the forename as well as the last name.