A new species of fossil oribatid mite, Ommatocepheus nortoni sp. nov. (Acariformes, Oribatida), is described from the Spanish Lower Cretaceous. The fossil is preserved in amber found in a new outcrop near Salinillas de Buradón (Province of Álava, northern Spain). It represents the first bioinclusion found at this locality and the third oribatid species described from Spanish Cretaceous amber.