Cognomen Ратгауз (Ратгауз 
, Ratgauz 
) , globally, is a rare last name. The cognomen Ратгауз is habitual in Russia, where it is a very rare surname, Ukraine, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Ратгауз | Russia, Ukraine |
| Ratgauz | Russia, United States |
|
даниил максимович ратгауз Russian writer and lawyer (1868-1937), UA (b. 1868) |
|
| ратгауз грейнем израилевич Soviet writer and literary critic (1934-2011), RU (b. 1934) |
|