Cognomen ミワ (ミワ 
, Miwa 
) , in the entire world, is a common family name. The family name ミワ is habitual in Japan, where it is quite a common surname, Oman, where it is a rare surname, and Singapore. Not in comparison with a country's population, it is commonest in Japan, Indonesia, and Brazil. Also, ミワ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| ミワ | Japan |
| Miwa | Indonesia, Japan, Taiwan, Brazil, United States |