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Surname Riano (Riano
, Riaño
, ريانو
) , throughout the world, is a common last name. The family name Riano is habitual in Colombia, where it is quite a common surname, Uruguay, where it is quite a rare surname, and Philippines. Measured by absolute frequency, it most frequently occurs in Colombia, Philippines, and Mexico. Very seldom, Riano is the forename as well as the last name.