Cognomen Hortensia (Hortensia 
, Hortênsia 
, Гортензия 
) , across the world, is a common surname. The cognomen Hortensia is characteristic of Mexico, where it is quite a common surname, Spain, and Venezuela, where it is quite a rare surname. Also, Hortensia is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Hortensia | Spain, Argentina, Mexico, United States, Democratic Republic of the Congo |
| Hortênsia | Brazil, Portugal |
| Гортензия | Russia, Kazakhstan |
| Ortanca | United Kingdom, Canada, United States, Germany, Turkey |