Cognomen Ducó (Ducó 
) , in the entire world, is an extremely rare family name. The cognomen Ducó is characteristic of Latin America and the Caribbean, particularly Chile, where it is an extremely rare surname, and Argentina.
| VARIANT | COUNTRY |
|---|---|
| Ducó | Chile, Argentina |
|
tomás adolfo ducó Argentinian military personnel, AR (b. 1901) |
|
|
nestor ducó Argentinian actor, AR (b. 1932) |
|