Yamaoka Family History
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Yamaoka Name Meaning
Japanese: topographic and habitational name meaning ‘mountain hill’; it is found chiefly in western Japan. Bearers from a district in Yamato (now Nara prefecture) are of Minamoto origin, while those from Omi (now Shiga prefecture) descend from the Ban family.
Source: Dictionary of American Family Names ©2013, Oxford University Press