Cognomen Ruth Adela (Ruth Adela 
) , in all the world, is a very rare surname. The surname Ruth Adela is characteristic of Latin America and the Caribbean, particularly Chile, where it is a rare surname. More frequently, Ruth Adela is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruth Adela | Philippines, Mexico, Chile, Ecuador, Peru |