Family name Agnecio (Agnecio 
) , all around the world, is an extremely rare cognomen. The family name Agnecio is characteristic of Latin America and the Caribbean, particularly Mexico, where it is an extremely rare surname. More frequently, Agnecio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Agnecio | Mexico, Honduras, Brazil, Philippines |