Surname Orio (Orio 
, オリオ 
, Орио) , all over the world, is a common family name. The surname Orio is characteristic of Belize, where it is quite a common surname, Philippines, where it is quite a rare surname, and Tanzania. In absolute terms, the name is most common in Philippines, Tanzania, and Italy. Very seldom, Orio is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Orio | Italy, France, Philippines, Tanzania, Argentina |
| オリオ | Japan |
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orio mastropiero politician, IT (b. 1150) |
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| ambrogio orio ES (b. 1737) |
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orio vergani Italian journalist, photographer and writer (1899-1960), IT (b. 1898) |
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orio dal porto Italian-Argentinian sculptor, AR (b. 1938) |
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| angelo a. orio author (20th century) (b. 1901) |
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orio palmer American firefighter (FDNY), first responder and victim of the September 11 attacks, US (b. 1956) |
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| orio giacchi IT (b. 1909) |
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| carl orio American heat pump researcher (b. 1934) |
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| orio giarini Italian economist, IT (b. 1936) |
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| orio caldiron IT (b. 1938) |
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| georges orio French politician, FR (b. 1949) |
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| orio galli CH (b. 1941) |
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| rogelio l. orio chess player (b. 1956) |
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| orio odori Clarinetist, composer, band director and teacher, IT (b. 1959) |
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| orio scaduto Italian actor, IT (b. 1966) |
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