Last name Jannyn (Jannyn 
) , worldwide, is a very rare cognomen. The surname Jannyn is characteristic of Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Honduras, and Mexico. Also, Jannyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jannyn | Philippines, Nicaragua, Colombia, United States, Mexico |