Family name John Jamer (John Jamer 
) , across the world, is an extremely rare cognomen. The last name John Jamer is habitual in Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname. More frequently, John Jamer is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| John Jamer | Chile, Peru, Colombia, Philippines |