Last name Maaroos (Maaroos 
) , around the world, is a very rare surname. The cognomen Maaroos is habitual in Estonia, where it is quite a rare surname, and Philippines, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Maaroos | Estonia, Philippines |
|
heidi-ingrid maaroos Estonian medical scientist, EE (b. 1942) |
|
| jaak maaroos EE (b. 1942) |
|
|
| ilmo maaroos (b. 1967) |
|