Last name Ованисян (Ованисян 
, Hovannisian 
, Ovanisyan ) , in all the world, is a rare cognomen. The surname Ованисян is habitual in Georgia, where it is a very rare surname, the United States, and Russia. Not in comparison with a country's population, it is the most numerous in the United States, Russia, and Canada. Also, Ованисян is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ованисян | Russia, Armenia |
| Hovannisian | Canada, United States, Georgia |
| Ovanisyan | United States, Russia |
| Ovanisjan | Netherlands |