Around the world, Qihan (Qihan 
, 启汉 , 其汉 ) is quite a rare principally male, but very seldom feminine first name. The forename Qihan is habitual in Eastern Asia, particularly China, where it is a rare principally masculine, but very infrequently female name. Much less frequently, Qihan is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Qihan | Australia, United States, Singapore, Malaysia, China |
| 其汉, 启涵, 启汉 | China |
| qihan wang (b. 950) |
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| qihan li (b. 1898) |
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| qihan li researcher (ORCID 0000-0002-8932-4516) |
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| qihan wu researcher (ORCID 0000-0002-5117-1198) |
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| qihan li researcher (ORCID 0000-0003-2484-9300) |
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| qihan chen researcher (ORCID 0000-0002-0062-8434) |
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| qihan xuan researcher |
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| qihan song researcher |
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| qihan li researcher ORCID 0000-0002-9682-2054 |
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| qihan wu researcher (ORCID 0000-0002-6529-4877) |
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| qihan liu Ph.D. Harvard University 2016 |
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| qihan liu researcher (ORCID 0000-0002-6283-3468) |
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| qihan zhao researcher (ORCID 0000-0003-0357-8863) |
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