Last name Joseph-Gerlus (Joseph-Gerlus 
) , worldwide, is an extremely rare cognomen. The surname Joseph-Gerlus is habitual in Northern America, particularly the United States, where it is an extremely rare surname. Parts of the name also exists independently as a first name Joseph, and a last name Gerlus.
| VARIANT | COUNTRY |
|---|---|
| Joseph-Gerlus | United States |