# Fierro

> English word · Proper noun · frequency rank #88,335

## Definitions
1. A surname.

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

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/fierro