Last name Rivara (Rivara 
) , all over the world, is quite a rare surname. The last name Rivara is habitual in Uruguay, where it is quite a rare surname, Argentina, and Italy. Not in comparison with a country's population, it is commonest in Argentina, Italy, and the United States. Very seldom, Rivara is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Rivara | Argentina, Italy, United States, India, Switzerland |
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joaquim heliodoro da cunha rivara Portuguese historian and philologist, PT (b. 1809) |
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| giovanni rivara Italian entrepreneur (1848-1901), IT (b. 1848) |
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| ferdinando rivara sentenced to death during the World War II, IT (b. 1926) |
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| franco rivara Italian association football player, IT (b. 1938) |
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| manuel o. diaz rivara Uruguayan-American geneticist and oncologist, UY (b. 1940) |
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| annie rivara (b. 1938) |
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| fred rivara American professor (born 1949) (b. 1949) |
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| javier rivara Argentine alpine skier, AR (b. 1970) |
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| anna c rivara researcher (ORCID 0000-0001-8693-723X) |
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| matthew b rivara researcher |
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| mirko rivara researcher |
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| silvia rivara researcher |
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| frederick p. rivara researcher ORCID ID = 0000-0003-1427-0637 |
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| f rivara researcher, University of Parma |
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| francisco rivara |
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Mr, Anne, Anja, Amie, Adam, Agus, Aida, Aymy, Afra, Axel, Cody, Kari, Phil, Raul, Rosa, Rene, Rich, Gary, Gaby, Gail, Gose, Gian, Anna, Aldo, Alda, Alan, Ms, Mia, Ana, Ann, Ada, Pat, Jay, Jas, Joe, Tom, Gina, Ely, Ema, Eva, Ira, Ida, Mary, Maxx, Mica, Mike, Sara, Soco, Eda, and Gino