Cognomen Eftevaag (Eftevaag 
) , all around the world, is a rare family name. The family name Eftevaag is habitual in Seychelles, where it is quite a common surname, Norway, where it is quite a rare surname, and Spain, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Eftevaag | Spain, Norway, Seychelles |
| claus eftevaag Norwegian association football player, NO (b. 1969) |
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| adam eftevaag |
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| johannes eftevaag Norwegian association football player |
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| levi eftevaag Norwegian association football player, NO |
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