Surname Shiro (Shiro 
, شيرو 
, シロ , and others...) , in the entire world, is a common cognomen. The surname Shiro is characteristic of Syria, where it is quite a rare surname, Kenya, and Japan. Measured by absolute frequency, it is commonest in Japan, Kenya, and Indonesia. Also, Shiro is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Shiro | Japan, Indonesia, Sri Lanka, Kenya, India |
| شيرو | Iran, Syria, Sudan, Egypt, Iraq |
| シロー, シロ | Japan |
| Сиро | Kazakhstan, Armenia, Russia, Ukraine |
| Широ | Kazakhstan, Russia, Ukraine |
| shiro shiba (b. 1852) |
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| shiro tashiro Japanese-American biochemist (b. 1883) |
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| shiro kashiwa United States federal judge, US (b. 1912) |
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| shiro sasaki Japanese Judge (1926-2003) (b. 1926) |
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| shiro ikegawa American artist, US (b. 1933) |
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| shiro oishi judoka (b. 1942) |
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| shiro natori (b. 1942) |
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| shiro sato Japanese cross-country skier, JP (b. 1953) |
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| shiro nakamori researcher |
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| yoshitsugu shiro researcher |
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| shiro hatakeyama researcher |
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| shiro sugiura researcher ORCID ID = 0000-0003-1048-2704 |
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| shiro yamada researcher ORCID ID = 0000-0003-3370-0065 |
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| shiro nakahara researcher |
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| shiro kobayashi botanist |
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