Surname Roumbas (Roumbas 
) , worldwide, is a very rare cognomen. The surname Roumbas is habitual in Cyprus, where it is quite a rare surname, Canada, where it is a very rare surname, and Australia. Measured by absolute frequency, it is the most numerous in Cyprus, Canada, and the United States. Very seldom, Roumbas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Roumbas | United Kingdom, Australia, United States, Cyprus, Canada |