Family name Koscielny (Koscielny 
) , worldwide, is quite a rare surname. The surname Koscielny is habitual in Poland, where it is quite a rare surname, Germany, where it is a rare surname, and France. Measured by absolute frequency, it most frequently occurs in Poland, Germany, and the United States. Likewise, Koscielny is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koscielny | Poland, France, United States, Indonesia, Germany |
|
laurent koscielny French association football player, FR (b. 1985) |
|
| serge koscielny researcher |
|
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| natalie koscielny DE |
|