Family name Codnich (Codnich 
) , all around the world, is a very rare last name. The surname Codnich is habitual in Italy, where it is a very rare surname, Croatia, and Venezuela, where it is an extremely rare surname. Measured by absolute frequency, it most frequently occurs in Italy, Venezuela, and Canada.
| VARIANT | COUNTRY |
|---|---|
| Codnich | Italy, Venezuela, Croatia, Canada |