Last name Rā (Raleigh 
, Rā 
) , throughout the world, is quite a common surname. The last name Rā is habitual in Guernsey, where it is quite a common surname, Ireland, where it is quite a rare surname, and Algeria. Measured by absolute frequency, it is the most numerous in the United States, Algeria, and Malaysia. Also, Rā is the forename as well as the last name.