Ramiro Fróilaz (floruit 1120–1169) was a Leonese magnate, statesman, and military leader. He was a dominant figure in the kingdom during the reigns of Alfonso VII and Ferdinand II. He was primarily a territorial governor, but also a court figure, connected to royalty both by blood and by marriage. The military exploits of his sovereigns involved him against both the neighbouring kingdoms of Navarre and Portugal and in the Reconquista of the lands of al-Andalus.
Ramiro was the eldest son of Fruela Díaz and Estefanía Sánchez of the Navarrese royal house, daughter of Sancho Garcés, Lord of Uncastillo. Ramiro's first wife was Inés (Agnès), perhaps a member of the French royal house or the family of the Counts of Armagnac. She was buried in the church of San Isidoro de León, where her epitaph names her husband and describes her as "descended from the kings of France". She was the mother of his eldest two sons, Alfonso and Fruela. On 22 September 1150 Ramiro gave these two the bridewealth (arras) which he had neglected to give their mother before her death. In the same charter, he gave them the lands he had confiscated from his niece, Estefanía Díaz, who had married without his consent, also mentioning the arras that he had given his other two wives, Sancha and Elo.
Ramiro's second wife was Sancha, an obscure woman whose origins are unknown. She gave him a son and a daughter: García and Estefanía, who married Ponce de Minerva. On the occasion of her marriage, the king and Ramiro gave Ponce their respective halves of the village of Carrizo de la Ribera, where Estefanía later erected a monastery (1176). Estefanía and Ponce's only son was named Ramiro after his grandfather.