Last name ヤマカ (ヤマカ 
, Yamaka 
) , across the world, is quite a rare family name. The last name ヤマカ is habitual in the Democratic Republic of the Congo, where it is quite a rare surname, Thailand, where it is a rare surname, and India, where it is a very rare surname. Very seldom, ヤマカ is the forename as well as the last name.