Cognomen Shadier (Shadier 
, Шадиёр 
) , around the world, is a rare last name. The cognomen Shadier is habitual in China, where it is a very rare surname, and India, where it is an extremely rare surname. Also, Shadier is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Shadier | United States, India, China |
| Шадиёр | Russia, Kazakhstan |