Cognomen Janyna (Janyna 
) , globally, is a very rare family name. The cognomen Janyna is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Mexico, where it is an extremely rare surname, and Chile. More prevalently, Janyna is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Janyna | Brazil, India, Mexico, United States, Peru |