Cognomen Hovannessian (Hovannessian 
) , in all the world, is a very rare surname. The cognomen Hovannessian is characteristic of France, where it is an extremely rare surname, Canada, and Brazil. Not in comparison with a country's population, the name is most common in Brazil, the United States, and France. Very seldom, Hovannessian is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hovannessian | Brazil, United States, France, Canada |