Cognomen Nilvia (Nilvia 
) , all over the world, is quite a rare family name. The cognomen Nilvia is characteristic of Latin America and the Caribbean, particularly Honduras, where it is quite a rare surname, Nicaragua, where it is a rare surname, and Venezuela. Measured by absolute frequency, this name is the most popular in Latin America and the Caribbean, particularly Mexico, Honduras, and Venezuela. More frequently, Nilvia is the forename as well as the last name.