Globally, Rengo (Rengo 
, Реньго 
) is quite a rare largely masculine, but seldom girly first name. The forename Rengo is habitual in Japan, where it is a rare female name, India, where it is a rare primarily male, but very seldom female name, and Egypt, where it is a very rare masculine name. Also, Rengo is the last name as well as the forename.