Surname Merfeldas (Merfeldas 
) , around the globe, is a very rare family name. The cognomen Merfeldas is habitual in Lithuania, where it is quite a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Merfeldas | Lithuania, United States |
| ervinas merfeldas Irish dancer and choreographer, IE |
|