Last name Sado (Sado 
, サド 
, Садо 
) , around the globe, is quite a common cognomen. The last name Sado is habitual in Albania, where it is quite a rare surname, Cameroon, and Benin. In absolute terms, the name is most common in Nigeria, Indonesia, and Cameroon. More frequently, Sado is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Sado | Tanzania, India, Nigeria, Ethiopia, Somalia |
| サド | Japan |
| Садо | Kazakhstan, Russia, Kyrgyzstan, Armenia, Ukraine |
| สะเดาะ | Thailand |
| sanryō sado (b. 1820) |
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| jerzy sado PL (b. 1907) |
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fatuma sado Ethiopian marathon runner, ET (b. 1991) |
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| ricardo yuji sado researcher (ORCID 0000-0002-6987-9290) |
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| mustaqim sado Indonesian politician (born 1980 in Atambua), ID (b. 1980) |
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| mitsuhiro sado researcher |
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| daniel m sado researcher |
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| natsuki sado researcher (ORCID 0000-0002-3958-8193) |
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| tetsuya sado ichthyologist |
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| junya sado researcher |
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| fatai sado researcher |
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| kazuki sado Japanese equestrian (born 1985) (b. 1985) |
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| paul sado US (b. 1978) |
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| sebastian sado badminton player, PL (b. 1994) |
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| besu sado Ethiopian athletics competitor, ET (b. 1996) |
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