All over the world, Райха (Rajha 
, Raiha 
, Raykha 
) is quite a rare unisex given name. The forename Райха is habitual in Israel, where it is a rare feminine name, the Democratic Republic of the Congo, and Kyrgyzstan. Not in comparison with a country's population, it most frequently occurs in India, the Democratic Republic of the Congo, and Indonesia. Likewise, Райха is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Rajha | Democratic Republic of the Congo, Indonesia, Lebanon, Syria, India |
| Raiha | Finland, Malaysia, Indonesia, India, Bangladesh |
| Raykha | Thailand, Brazil, Canada, United States, India |
| Райха | Kazakhstan, Russia, Kyrgyzstan, Ukraine |