Cognomen Rischio (Risco 
, Risgo 
, Rischio 
) , across the world, is a common last name. The surname Rischio is habitual in Latin America and the Caribbean, particularly Peru, where it is quite a common surname, Cuba, where it is quite a rare surname, and Chile. Measured by absolute frequency, it most frequently occurs in Peru, Spain, and Chile. Much less frequently, Rischio is the forename as well as the last name.