Ordoño I ( – 27 May 866) was King of Asturias from 850 until his death. He was born in Oviedo, where he spent his early life in the court of Alfonso II. He was probably raised in Lugo, capital of the province of Galicia, where his father, Ramiro I, had been named governor. He received his education and military training there.
Ordoño was named governor of Galicia when his father went to Bardulia to marry his second wife, Paterna. While Ramiro was away, Alfonso II died, and the nobles elected Count Nepocian as king.
Ordoño later went to war against Musa ibn Musa, a Muslim Goth who had been consolidating his power and controlled Zaragoza, Albelda, Tudela, Huesca, and Toledo. According to the Chronicle of Alfonso III, Musa had placed his army at Monte Laturce, outside of Albelda, which he had recently fortified. Musa's son, referred to as Lupo, supposedly subjugated himself to Ordoño upon learning of the result of the battle; he remained Ordoño's vassal for the rest of his life and fought alongside him against other Moors.