Fierro

• As a Spanish-Asturian-Leonese surname, from fierro (“iron”). Compare DelFierro.
• As an Italian surname, variant of Ferro.

Fierro (plural Fierros)

1. A surname.

• According to the 2010 United States Census, Fierro is the 2519^th most common surname in the United States, belonging to 14371 individuals. Fierro is most common among Hispanic/Latino (83.81%) and White (14.81%) individuals.

• ferior