Cognomen Jannelly (Jannelly 
) , in the world, is a very rare family name. The cognomen Jannelly is habitual in Latin America and the Caribbean, particularly Honduras, where it is a very rare surname, Venezuela, and Mexico. More prevalently, Jannelly is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jannelly | Mexico, Colombia, United States, Dominican Republic, Venezuela |