Family name Keinyn (Keinyn 
) , worldwide, is an extremely rare last name. The surname Keinyn is habitual in Latin America and the Caribbean, particularly Honduras, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. Likewise, Keinyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Keinyn | Costa Rica, Honduras, United States, Venezuela |