Cognomen Rá (Roscoe 
, Rå 
, Rá 
) , in the entire world, is a common family name. The last name Rá is habitual in the United Kingdom, where it is quite a rare surname, Algeria, and New Zealand. Not in comparison with a country's population, it is the most numerous in the United States, the United Kingdom, and Algeria. Also, Rá is the forename as well as the last name.