Around the globe, Onaka (大中 
, Onaka 
) is quite a common principally boy's, but scarcely girly first name. The forename Onaka is habitual in China, where it is a rare principally boy's, but very infrequently female name, Nigeria, where it is a very rare gender-neutral name, and India, where it is an extremely rare gender-neutral name. Much less frequently, Onaka is the last name as well as the forename.