Last name アルノ (Arno 
, アルノ 
, Arnò 
) , in the entire world, is quite a common cognomen. The cognomen アルノ is habitual in the Dominican Republic, where it is quite a rare surname, Estonia, and Italy. Not in comparison with a country's population, it is commonest in Indonesia, the United States, and Italy. More frequently, アルノ is the forename as well as the last name.