Surname Rinchu (Rinchu 
) , all over the world, is quite a rare cognomen. The surname Rinchu is characteristic of Japan, where it is quite a rare surname, and India, where it is an extremely rare surname. Likewise, Rinchu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rinchu | Thailand, Saudi Arabia, India, United States, Japan |