Cognomen Jahs (Jahs 
) , worldwide, is a rare family name. The surname Jahs is habitual in Namibia, where it is quite a rare surname, Germany, where it is a very rare surname, and South Africa, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in Namibia, Germany, and Nigeria. Very seldom, Jahs is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jahs | Germany, Namibia, Malaysia, Nigeria, United States |