Cognomen Jahny (Jahny 
) , across the world, is a rare family name. The cognomen Jahny is habitual in Hungary, where it is a rare surname, Germany, and Saudi Arabia, where it is a very rare surname. Likewise, Jahny is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jahny | Germany, Saudi Arabia, Philippines, Hungary, India |
| margarete jahny German designer and ceramist, DE (b. 1923) |
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