Last name Раньо (Ragno 
, Раньо 
) , all around the world, is quite a rare family name. The surname Раньо is characteristic of Italy, where it is quite a rare surname, Argentina, and Switzerland, where it is a rare surname. Measured by absolute frequency, it is commonest in Italy, Argentina, and the United States. Very seldom, Раньо is the forename as well as the last name.