Cognomen Iro (Iro 
, Ηρώ , Иро 
) , globally, is a common last name. The last name Iro is characteristic of Solomon Islands, where it is quite a common surname, Greece, and Nigeria, where it is quite a rare surname. In absolute terms, it most frequently occurs in Nigeria, Greece, and Niger. Likewise, Iro is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Iro | Japan, Greece, Nigeria, Ethiopia, Indonesia |
| Ηρώ | Greece |
| Иро | Russia |
| イロ | Japan |
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karl iro Czech member of Czech council, local politician, publicist, entrepreneur and writer, AT (b. 1861) |
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iro bonci Italian footballer (1923-1977), IT (b. 1923) |
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| otto iro Austrian vocal coach, CZ (b. 1890) |
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iro haarla Finnish musician and pianist, FI (b. 1956) |
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| iro ilk German World War II bomber and fighter pilot (1919-1944), DE (b. 1919) |
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| jörg iro Austrian politician (1926-2017), AT (b. 1926) |
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andy iro English footballer (born 1984), GB (b. 1984) |
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| iro tembeck Canadian dancer, CA (b. 1946) |
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| gert michael iro AT (b. 1948) |
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| iro belluzzi politician from San Marino, SM (b. 1964) |
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| heinrich iro DE (b. 1956) |
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| tony iro New Zealand rugby league footballer, coach and administrator, NZ (b. 1967) |
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| kevin iro New Zealand rugby league footballer and coach, NZ (b. 1968) |
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| viktor iro German author, DE (b. 1968) |
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| iro landaluze ES (b. 1960) |
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