Cognomen Ryushi (Ryushi 
, Кавабата 
) , in the entire world, is a rare surname. The family name Ryushi is characteristic of Japan, where it is a rare surname, Russia, where it is an extremely rare surname, and China. Also, Ryushi is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ryushi | Japan, China, United States, France, Brazil |
| Кавабата | Russia |