Last name Jeahn (Jeahn 
) , across the world, is an extremely rare cognomen. The surname Jeahn is habitual in Latin America and the Caribbean, particularly Venezuela, where it is a very rare surname, and Peru, where it is an extremely rare surname. More prevalently, Jeahn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jeahn | Peru, Philippines, Venezuela, Brazil, United States |