Erudinus ([erʊˈdinʊs]), Erudinu (: [eɾu'ðinu]) or Erudino ([eɾu'ðino]) was a pagan god in Cantabrian mythology. A stone altar with an inscription dated from the year 399 was found in 1925 by Hermilio Alcalde del Río at the Dobra peak, near Torrelavega (Cantabria). The inscription says:
CORNE(lius) VICANVS / AVNIGAINV(m) / CESTI(i) F(ilius). ARA(m) / POSSVIT. DEO / ERVDINO. X. K(alendas)/ AVGV(stas). MA(llio). EV(tropio) CO(n)s(ulibus).
The altar forms part of the stock of the Museum of Prehistory and Archaeology of Cantabria, while a replica is installed in a green zone at Sierrapando. From 2001 to 2012, this reproduction remained in the Serafin Escalante street in Torrelavega.