In the world, Kaiyu (Kaiyu 
, 开玉 , 凯玉 ) is quite a common epicene first name. The first name Kaiyu is habitual in Japan, where it is quite a rare boy's name, China, where it is a rare epicene name, and the United States, where it is an extremely rare unisex name. Very seldom, Kaiyu is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Kaiyu | Japan, China, Taiwan, United States, India |
| 凯玉, 开玉, 开余 | China |
| kaiyu sun researcher (ORCID 0000-0002-6621-4971) |
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| kaiyu sun researcher ORCID 0000-0001-7633-9439 |
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| kaiyu wang researcher (ORCID 0000-0003-0229-9096) |
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| kaiyu fu researcher ORCID ID = 0000-0002-7899-0388 |
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| kaiyu lei researcher |
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| kaiyu liu researcher (ORCID 0000-0003-4449-4295) |
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| kaiyu zhang researcher (ORCID 0000-0002-4187-341X) |
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| kaiyu liu researcher (ORCID 0000-0002-3810-4572) |
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| kaiyu qian researcher |
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| kaiyu wan Ph.D. Concordia University 2006 |
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| kaiyu hang researcher |
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| kaiyu xu researcher |
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| kaiyu zhou researcher |
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| kaiyu wang researcher (ORCID 0000-0002-9300-7265) |
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| kaiyu wang researcher (ORCID 0000-0002-6580-9009) |
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