In the world, Онума (Onuma 
, 大沼 
, 小沼 ) is quite a rare gender-neutral first name. The forename Онума is habitual in Thailand, where it is quite a rare female name, Nigeria, where it is a rare gender-neutral name, and China, where it is an extremely rare boy's name. Much less frequently, Онума is the last name as well as the forename.