In the world, ミキオ (Mikio 
, ミキオ ) is quite a rare boy's first name. The forename ミキオ is habitual in Japan, where it is a rare boy's name, the United States, where it is a very rare predominantly boy's, but very infrequently female name, and Indonesia, where it is a very rare male name. In absolute terms, it is the most numerous in Japan, China, and the United States. More frequently, ミキオ is the last name as well as the forename.