Last name Warena (Warena 
) , worldwide, is a very rare cognomen. The surname Warena is characteristic of New Zealand, where it is a rare surname, Australia, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Also, Warena is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Warena | Philippines, Australia, United States, India, New Zealand |