Family name Риги (Rigi 
, Righi 
, Риги 
) , around the world, is a common cognomen. The family name Риги is characteristic of San Marino, where it is a common surname, Italy, where it is quite a common surname, and Algeria. In absolute terms, it is commonest in Italy, Algeria, and Brazil. Very seldom, Риги is the forename as well as the last name.