Surname 山根 (Ayano 
, Yamane 
, 山根 ) , worldwide, is a common cognomen. The last name 山根 is habitual in Ethiopia, where it is quite a rare surname, Lebanon, and Morocco, where it is a rare surname. Not in comparison with a country's population, the name is most common in Ethiopia, Nigeria, and the United States. More frequently, 山根 is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Ayano | Japan, Ethiopia, Nigeria, United States, Brazil |
| Yamane | Japan, China, Ethiopia, United States, Brazil |
| 山根 | China |
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山根正次 politician, JP (b. 1858) |
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| 山根幸恵 JP (b. 1923) |
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| 山根二郎 Japanese lawyer, JP (b. 1936) |
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| 山根孝文 Japanese announcer, JP (b. 1971) |
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| 山根伸志 Japanese announcer, JP (b. 1974) |
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| 山根舞 Japanese actor and seiyū, JP (b. 1980) |
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| 山根雅史 Japanese voice actor, JP |
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| 山根千佳 Japanese tarento, JP (b. 1995) |
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| 山根ことみ Japanese Shogi player, JP (b. 1998) |
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