Cognomen Addyn (Addyn 
) , worldwide, is an extremely rare family name. The family name Addyn is characteristic of Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Ecuador, and Mexico, where it is an extremely rare surname. More frequently, Addyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Addyn | Spain, Nicaragua, Bolivia, United States, Ecuador |