Cognomen Romanous (Romanous 
) , all over the world, is a rare last name. The surname Romanous is characteristic of Australia, where it is a rare surname, Nigeria, where it is a very rare surname, and Venezuela. Not in comparison with a country's population, this name is the most popular in Australia, Nigeria, and the United States. Much less frequently, Romanous is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Romanous | Australia, Venezuela, United States, India, Nigeria |