Alma de hierro (English title: Soul of Steel) is a Mexican telenovela produced by Giselle González and Roberto Gómez Fernández for Televisa in 2008.

The telenovela stars Alejandro Camacho, Blanca Guerra, Jorge Poza, Adamari López, Alberto Estrella, Martha Julia, Rafael Inclán and Adrián Uribe.

José Antonio Hierro (Alejandro Camacho), a good and friendly but excessively jealous man, whom even his wife calls by his last name, married Elena Jiménez (Blanca Guerra) 25 years ago and today they have three children: Sebastián (Jorge Poza), Sandy (Angelique Boyer) and Wicho (Eddy Vilard).

Today he has returned to Mexico, divorced and with an important position in National Education, and he has called Elena to work alongside him because he is determined to get her back, no matter what he has to do to achieve it.

The fate of the love triangles of youths and adults takes unexpected turns depending on the reactions and interventions of each of the Hierros, ending in a surprising outcome that will leave important lessons for each member of this family that truly has a Soul of Steel.