Surname Marcús (Marcús 
) , in the world, is a very rare cognomen. The family name Marcús is habitual in Spain, where it is a very rare surname, and Argentina, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Marcús | Spain, Argentina |
|
joana marcús ES |
|
| marcús jgr ES (b. 1968) |
|