Family name Сиротинскайа (Сиротинскайа 
) , in the world, is an extremely rare last name. The family name Сиротинскайа is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Сиротинскайа | Russia |
Sirotinskaia, and Sirotinskaya