Last name Микио (Mikio 
, Микио 
) , throughout the world, is quite a rare cognomen. The family name Микио is characteristic of Japan, where it is quite a rare surname, Taiwan, where it is a rare surname, and the Democratic Republic of the Congo. Not in comparison with a country's population, this name is the most popular in Japan, China, and the Democratic Republic of the Congo. Also, Микио is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mikio | Japan, China, Taiwan, Brazil, Democratic Republic of the Congo |
| Микио | Russia |