Family name Dacunha (Dacunha 
) , all over the world, is quite a rare cognomen. The cognomen Dacunha is characteristic of France, where it is a rare surname, Angola, and Uruguay. Not in comparison with a country's population, it most frequently occurs in France, the United States, and Angola. Very seldom, Dacunha is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Dacunha | Indonesia, Angola, United States, India, France |
| didier dacunha-castelle French mathematician, FR (b. 1937) |
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| paskalis ascara dacunha Indonesian politician (born 1962 in Maumere), ID (b. 1962) |
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| jeffrey j. dacunha Ph.D. Baylor University 2004 |
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| matthew dacunha researcher (ORCID 0000-0001-8251-5742) |
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| peter dacunha American actor, US |
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