Cognomen Maruai (Maruai 
) , across the world, is a very rare family name. The last name Maruai is habitual in Malaysia, where it is a very rare surname, Brazil, and Thailand, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Brazil, India, and Malaysia. Likewise, Maruai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Maruai | Brazil, India, Malaysia, Thailand, United States |