Family name Shinjo (新城 
, Shinjo 
, 新庄 ) , around the world, is quite a rare last name. The family name Shinjo is characteristic of Singapore, where it is a rare surname, China, and Japan, where it is a very rare surname. Measured by absolute frequency, it is commonest in China, Japan, and Indonesia. More frequently, Shinjo is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 新庄, 新城 | China |
| Shinjo | Japan, China, Indonesia, South Korea, United States |
| naosuke shinjo (b. 1692) |
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| naotaka shinjo (b. 1716) |
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| naonori shinjo (b. 1751) |
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| takanori shinjo researcher |
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| keiko shinjo researcher (ORCID 0000-0002-7797-6453) |
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| satoko shinjo researcher (ORCID 0000-0002-1063-5961) |
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| samuel katsuyuki shinjo researcher |
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| sueli shinjo researcher |
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| takafumi shinjo researcher |
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| masaki shinjo researcher |
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| sueli mieko oba shinjo researcher |
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| hirokazu shinjo Japanese amateur wrestler, JP (b. 1982) |
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