Cognomen Johnalexander (Johnalexander 
) , around the world, is an extremely rare family name. The cognomen Johnalexander is habitual in Colombia, where it is a very rare surname, and Thailand, where it is an extremely rare surname. More prevalently, Johnalexander is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Johnalexander | Philippines, Colombia, Brazil, United States, Thailand |