Family name Karumaa (Karumaa 
) , all over the world, is a very rare last name. The surname Karumaa is characteristic of Northern Europe, particularly Estonia, where it is quite a rare surname, and Finland.
| VARIANT | COUNTRY |
|---|---|
| Karumaa | Finland, Estonia |
| matti karumaa Finnish ice hockey player (1924-1993), FI (b. 1924) |
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| antero karumaa Finnish counter admiral (ret.), FI (b. 1952) |
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