Last name Alfaia (Alfaia 
) , throughout the world, is quite a common cognomen. The surname Alfaia is characteristic of Portugal, where it is quite a rare surname, Brazil, and Switzerland, where it is a rare surname. Not in comparison with a country's population, it most frequently occurs in Brazil, Portugal, and France.
| VARIANT | COUNTRY |
|---|---|
| Alfaia | Portugal, Switzerland, United States, France, Brazil |
| cristina m. alfaia researcher |
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| antónio j i alfaia researcher |
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