Last name Eftimiu (Eftimiu 
) , throughout the world, is a rare surname. The last name Eftimiu is habitual in Romania, where it is quite a rare surname, North Macedonia, where it is a rare surname, and Bulgaria. Much less frequently, Eftimiu is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Eftimiu | Romania, Italy, North Macedonia, Bulgaria, United States |
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victor eftimiu Romanian poet and playwright (1889-1972), RO (b. 1889) |
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| constantin eftimiu Romanian general (b. 1893) |
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| ioan eftimiu (b. 1894) |
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| constantin eftimiu Romanian violinist, RO (b. 1908) |
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