Last name Pärnoja (Pärnoja 
) , around the globe, is a very rare cognomen. The last name Pärnoja is characteristic of Northern Europe, particularly Estonia, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pärnoja | Estonia |
| karl pärnoja (b. 1916) |
|
|
|
erki pärnoja EE (b. 1984) |
|
| mihkel pärnoja Estonian politician, EE (b. 1946) |
|
|
| eed pärnoja Estonian chemist, EE (b. 1946) |
|