Surname Микаиа (Mikaia 
, Микаиа 
) , in the world, is a rare family name. The last name Микаиа is habitual in Georgia, where it is a rare surname, Madagascar, and Russia, where it is a very rare surname. Likewise, Микаиа is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mikaia | Georgia, Nigeria, Madagascar, India, Myanmar |
| Микаиа | Russia |