Family name Каланджян (Каланджян 
, Kalandzhyan 
) , around the globe, is a very rare cognomen. The cognomen Каланджян is habitual in Russia, where it is a very rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Каланджян | Russia |
| Kalandzhyan | United States |