Cognomen Ригини (Righini 
, Ригини 
) , in the world, is quite a rare family name. The cognomen Ригини is habitual in Italy, where it is quite a rare surname, Switzerland, and Argentina, where it is a rare surname. Measured by absolute frequency, the name is most common in Italy, Argentina, and France. Much less frequently, Ригини is the forename as well as the last name.