Last name Dadário (Dadário 
) , across the world, is an extremely rare family name. The surname Dadário is habitual in Latin America and the Caribbean, particularly Brazil, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dadário | Brazil |
| andrew maranhão ventura dadário researcher (ORCID 0000-0002-7305-7038) |
|