Cognomen Sumaini (Sumaini 
) , across the world, is a rare last name. The last name Sumaini is habitual in Indonesia, where it is a rare surname, Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. Also, Sumaini is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sumaini | India, Malaysia, Indonesia, Philippines |