Family name ריסו (Risso 
, ריסו 
) , in all the world, is a common last name. The family name ריסו is characteristic of Latin America and the Caribbean, particularly Uruguay, where it is quite a common surname, Argentina, and Paraguay. Not in comparison with a country's population, it is the most numerous in Argentina, Italy, and Brazil. Much less frequently, ריסו is the forename as well as the last name.