Family name Dayena (Dayena 
) , across the world, is a very rare cognomen. The family name Dayena is characteristic of Indonesia, where it is a very rare surname, and Brazil, where it is an extremely rare surname. Likewise, Dayena is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dayena | Philippines, Brazil, United States, India, Indonesia |