All around the world, Rengen (仁根 
, 任根 , Rengen 
) is quite a rare primarily male, but very seldom girly given name. The first name Rengen is characteristic of China, where it is a rare boy's name, and Philippines, where it is a very rare unisex name. Much less frequently, Rengen is the last name as well as the forename.
Ms, Andrea, Calvin, Daniel, Lauren, Joseph, Jordan, Taufik, Nathan, Harald, Silvia, Others, Suganth, Brandie, Bradley, Kaitlyn, Timothy, Natalie, Forrest, Margaret, Michelle, Suneeta, Sharon, Sahaka, Zulva, Ni, Ann, Kay, Miri, Sean, Alex, Bert, Paul, Reta, Ryan, John, Mohan, Karel, Klaus, Rohan, Glenn, Laura, Larry, Janis, Jacob, Wayne, Danielle, and Wellemina