Family name Eunico (Eunico 
) , all over the world, is an extremely rare last name. The cognomen Eunico is habitual in Latin America and the Caribbean, particularly Venezuela, where it is an extremely rare surname. Much more prevalently, Eunico is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Eunico | South Africa, Philippines, Venezuela, Brazil, United States |