Family name Siano (Siano 
, سيانو) , worldwide, is quite a common surname. The family name Siano is characteristic of Italy, where it is quite a rare surname, Philippines, and Haiti. Not in comparison with a country's population, it most frequently occurs in Italy, Philippines, and the United States. Much less frequently, Siano is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Siano | Philippines, Brazil, Italy, Argentina, United States |
| tony siano American football player (1907-1986), US (b. 1907) |
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| silvio siano Italian film director and producer, IT (b. 1921) |
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| nicky siano American disc jockey, US (b. 1955) |
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| mike siano football player (born 1963) (b. 1963) |
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| leopoldo siano Italian author, IT (b. 1964) |
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| susy siano Italian association football player, IT (b. 1968) |
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| sergio siano Italian photographer (1969-), IT (b. 1969) |
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| pierluigi siano Italian electronic engineer, IT |
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| paolo siano researcher |
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| mirko siano researcher |
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| daniela siano researcher, ORCID id # 0000-0003-3386-2937 |
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| alvaro siano researcher |
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| francesco siano researcher ORCID ID = 0000-0003-1670-7871 |
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| giacomo siano Italian neurobiologist, IT |
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| raffaele siano researcher (ORCID 0000-0002-6521-0100) |
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