Last name Ahlwarth (Ahlwarth 
) , worldwide, is a very rare family name. The cognomen Ahlwarth is habitual in Western Europe, particularly Germany, where it is a very rare surname, and France, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ahlwarth | Germany, France |
| karl ahlwarth (b. 1873) |
|