Cognomen Suaina (Suaina 
) , throughout the world, is a very rare last name. The surname Suaina is habitual in Argentina, where it is a very rare surname, and Malaysia, where it is an extremely rare surname. More prevalently, Suaina is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Suaina | Argentina, United States, Malaysia, Philippines, India |