Surname Могилнер (Могилнер 
, Mogilner 
, Moguilner 
) , worldwide, is a rare family name. The cognomen Могилнер is habitual in Paraguay, where it is quite a rare surname, Israel, where it is a rare surname, and Uruguay. In absolute terms, it most frequently occurs in Paraguay, Argentina, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Могилнер | Russia |
| Mogilner | United Kingdom, Canada, United States, Argentina, Israel |
| Moguilner | United States, Argentina, Paraguay, Uruguay |