Throughout the world, Усий (Usy 
, Усий 
, Usiy ) is a rare dominantly feminine, but seldom boy's first name. The forename Усий is characteristic of Indonesia, where it is a rare dominantly female, but uncommonly masculine name, Mexico, where it is a very rare feminine name, and Nigeria, where it is an extremely rare male name. In absolute terms, it is the most numerous in Indonesia, Mexico, and India. Very seldom, Усий is the last name as well as the forename.