>
Cognomen 足立 (Adachi , 足立 , Адати) , across the world, is quite a rare last name. The surname 足立 is habitual in Bhutan, where it is quite a common surname, Equatorial Guinea, where it is quite a rare surname, and Hong Kong, where it is a rare surname. Not in comparison with a country's population, it is commonest in Japan, the United States, and Brazil. Likewise, 足立 is the forename as well as the last name.