>
Cognomen Ryza (Риза
, Ries
, Ryza
) , around the globe, is a common family name. The surname Ryza is characteristic of Western Europe, particularly Luxembourg, where it is quite a common surname, Germany, and Switzerland, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Germany, the United States, and Indonesia. Very seldom, Ryza is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Риза | Kazakhstan, Russia, Bulgaria, Azerbaijan, Ukraine |
| Ries | Brazil, France, Indonesia, United States, Germany |
| Ryza | Philippines, Canada, Czechia, Indonesia, United States |
| Рыза | Kazakhstan, Kyrgyzstan, Russia |