Last name Реутцкаиа (Реутцкаиа 
) , all around the world, is an extremely rare cognomen. The family name Реутцкаиа is habitual in Eastern Europe, particularly Russia, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Реутцкаиа | Russia |
Reutskaia, and Reuttskaya