Last name Shuai (Shuai 
, شواي 
, Пенг 
) , around the world, is a common family name. The family name Shuai is characteristic of China, where it is quite a rare surname, Singapore, and Hong Kong. Measured by absolute frequency, it is commonest in China, Russia, and Malaysia. Also, Shuai is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Shuai | Malaysia, Japan, Taiwan, United States, China |
| شواي | Sudan, Iraq, Algeria, Morocco |
| Пенг, Шуай | Kazakhstan, Kyrgyzstan, Russia, Ukraine |
| shuai yongchang politician (b. 1375) |
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| shuai ji Ming dynasty person CBDB = 205641 (b. 1537) |
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| shuai xiang Ming dynasty person CBDB = 205883 (b. 1538) |
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| shuai rengzu Qing dynasty person CBDB = 73031 (b. 1681) |
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| shuai guangzu Qing dynasty person CBDB = 73032 (b. 1697) |
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| shuai jiaxiang Qing dynasty person CBDB = 54662 (b. 1709) |
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| zhao shuai Qing dynasty person CBDB = 84058 (b. 1740) |
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| shuai chengying Qing dynasty person CBDB = 56883 (b. 1766) |
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| shuai fangwei Qing dynasty person CBDB = 59168 (b. 1790) |
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| shuai yuanyi Qing dynasty person CBDB = 350476 (b. 1817) |
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| shuai yingchun Chinese Go player (b. 1970) |
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| mei shuai (b. 1969) |
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| shuai han researcher (ORCID 0000-0002-5963-3772) |
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| shuai chen researcher (ORCID 0000-0001-8566-601X) |
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| shuai dong researcher (ORCID 0000-0002-2434-2430) |
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