In the world, Erzi (二子 
, Erzi 
, Эрзи 
) is quite a rare epicene first name. The forename Erzi is characteristic of Brazil, where it is a very rare female name, China, where it is a very rare mostly boy's, but seldom female name, and Indonesia, where it is a very rare boy's name. Likewise, Erzi is the last name as well as the forename.