10 Most Popular Last & First Names In Mexico both the father's and mother's last name are used as a person's last name. Hernández 3,430,027 people's last name is Hernández Hernández means son of Hernan. García is a Vasque last name meaning young or young warrior. Lòpez means son of Lope. Martìnez means son of Martín. Rodrìguez means son of Rodrigo.