Family name Ternovaia (Ternovaia 
, Терноваиа 
) , around the world, is a very rare cognomen. The family name Ternovaia is habitual in Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ternovaia | United States |
| Терноваиа | Russia |