Cognomen Rotum (Rotum 
) , across the world, is a very rare last name. The family name Rotum is habitual in Philippines, where it is a very rare surname, Nigeria, where it is an extremely rare surname, and India. Very seldom, Rotum is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rotum | India, Nigeria, Philippines |