Cognomen Karttimo (Karttimo 
) , all around the world, is a very rare surname. The cognomen Karttimo is characteristic of Northern Europe, particularly Finland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Karttimo | Finland |
| leo karttimo Finnish military officer and historian (1942-2000), FI (b. 1942) |
|