Surname Bayarsaikhan (Bayarsaikhan 
, Баярсаихан 
, Баярсайхан 
) , around the world, is quite a common cognomen. The surname Bayarsaikhan is habitual in Mongolia, where it is a common surname, British Virgin Islands, where it is quite a common surname, and Czechia, where it is a rare surname. In absolute terms, it most frequently occurs in Mongolia, the United States, and Czechia. Very seldom, Bayarsaikhan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Bayarsaikhan | China, Czechia, United States, Poland, Mongolia |
| Баярсаихан | Russia |
| Баярсайхан | Russia, Ukraine, Belarus |
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boldbaatar bayarsaikhan gymnast, MN |
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| tsevelmaagiin bayarsaikhan politician (b. 1962) |
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| ulziijargal bayarsaikhan South Korean entomologist, KR |
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| uranchimeg bayarsaikhan researcher |
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| ganchimeg bayarsaikhan researcher |
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| erdenechimeg bayarsaikhan badminton player, MN (b. 1984) |
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| bayarsaikhan jargalsaikhan Mongolian ice hockey and bandy player, MN (b. 1986) |
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| bayarsaikhan yanjinlkham chess player (b. 1996) |
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