Family name Saaja (Saaja 
, Саая 
) , across the world, is a rare cognomen. The family name Saaja is characteristic of Russia, where it is a rare surname, Indonesia, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. Measured by absolute frequency, it is the most numerous in Russia, Indonesia, and India. Much less frequently, Saaja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Saaja | United Kingdom, United States, India, Indonesia |
| Саая | Kazakhstan, Russia |