All around the world, ريي (Rie 
, ريي 
) is a common dominantly female, but infrequently masculine forename. The first name ريي is habitual in Japan, where it is quite a rare female name, Denmark, and Indonesia, where it is quite a rare gender-neutral name. In absolute terms, it is commonest in Japan, Indonesia, and the United States. Much less frequently, ريي is the last name as well as the forename.