Family name Rumain (Rumain 
) , in the world, is a rare last name. The last name Rumain is habitual in Indonesia, where it is a rare surname, Malaysia, where it is a very rare surname, and France. Measured by absolute frequency, this name is the most popular in Indonesia, the United States, and Malaysia. Also, Rumain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rumain | Indonesia, Malaysia, United States, India, Bangladesh |
|
charles-marie de trolong du rumain French naval officer (1743-1780) (b. 1743) |
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