Abstract: A new bandfi sh, Owstonia sarmiento, is described from specimens collected off East Luzon, Philippines at about 200–300 m depth during the AURORA 2007 Expedition. It differs from other known congeneric species in having more dorsal fi n rays, two anal spines, more vertebral counts, and the least lateral row scale counts. The species is described (colour photo and radiograph included) and a diagnostic key to species of the genus is provided. KEY WORDS. – Owstonia sarmiento, Owstonia, Cepolidae, new species, Philippines, deep-sea fish.