Family name Nacu (Nacu 
, Нацу 
, นาคู 
) , around the globe, is quite a common cognomen. The surname Nacu is habitual in Moldova, where it is quite a common surname, Romania, and Philippines, where it is quite a rare surname. Much less frequently, Nacu is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nacu | Afghanistan, Moldova, India, Philippines, Romania |
| Нацу | Russia, Kazakhstan |
| นาคู | Thailand |
| constantin nacu RO (b. 1844) |
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| demostene nacu politician, GR (b. 1920) |
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| alexandru nacu (b. 1929) |
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| şerban nacu Ph.D. University of California, Berkeley 2004 |
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| aliona nacu researcher |
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| laura nacu Romanian basketball player, RO (b. 1982) |
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