Vagodonnaegus is a god of the Astures whose cult is documented by two altars from La Milla del Río, on the river Órbigo west of the conventus capital Asturica Augusta (Astorga). The principal altar is exceptional in Hispania because the dedication was made officially by the res publica of Asturica Augusta acting through its magistrates, showing a native god formally adopted into the public religion of a Roman city. The meaning of the theonym is disputed: interpretations building on the Celtic element donn, 'the dark one', have suggested an underworld or ancestral character comparable to the Irish Donn, while others see a territorial or river-valley divinity of the middle Órbigo. In the same manner as Aernus among the Zoelae, Vagodonnaegus illustrates how Asturian communities maintained their own tutelary gods under Roman rule.