Family name Sayo (Sayo 
, サヨ , سايو) , globally, is a common surname. The cognomen Sayo is characteristic of Japan, where it is quite a rare surname, Philippines, and Nigeria. Likewise, Sayo is the forename as well as the last name.
| armel sayo Central African politician, CF (b. 1953) |
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| jean sayo Central African politician |
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| akira sayo researcher |
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| bernadette sayo Central African politician |
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| renato sayo researcher |
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| kitaori sayo Japanese singer, ex-idol |
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| armel ningatoloum sayo Central African politician |
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