Family name Czelny (Czelny 
) , in all the world, is a rare last name. The cognomen Czelny is habitual in Poland, where it is a rare surname, Germany, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. More prevalently, Czelny is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Czelny | Poland, France, United States, United Kingdom, Germany |
| adam czelny (b. 1909) |
|
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| kazimierz czelny PL (b. 1922) |
|