Surname Аратани (Aratani 
, 荒谷 , Аратани 
) , around the globe, is a rare last name. The surname Аратани is habitual in Brazil, where it is a very rare surname, Japan, and India. In absolute terms, it most frequently occurs in India, Brazil, and the United States. Very seldom, Аратани is the forename as well as the last name.