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All over the world, 小山 (小山 , Oyama , Koyama , and others...) is a common dominantly masculine, but uncommonly female first name. The first name 小山 is characteristic of Nigeria, where it is quite a rare gender-neutral name, China, where it is quite a rare principally male, but scarcely girly name, and South Africa, where it is a rare unisex name. Likewise, 小山 is the last name as well as the forename.
小山 is also a name for the fictitious and mythical characters: .