Family name 真山 (Mayama 
, 真山 
) , all around the world, is quite a common cognomen. The last name 真山 is characteristic of Sub-Saharan Africa, particularly the Democratic Republic of the Congo, where it is quite a rare surname, Gabon, and Cameroon, where it is a rare surname. Not in comparison with a country's population, it is commonest in the Democratic Republic of the Congo, Kenya, and China. Much less frequently, 真山 is the forename as well as the last name.
| 真山 一郎 Japanese singer, JP (b. 1929) |
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| 真山 知子 Japanese actress and quilt maker (1941-), JP (b. 1941) |
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| 真山亜子 Japanese voice actress, JP (b. 1958) |
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| 真山 隼人 Japanese rōkyoku singer (1995-), JP (b. 1995) |
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