A new species of dwarfgoby, Eviota amphipora n. sp., is described from Milne Bay, Papua New Guinea. The new species has a cephalic sensory-canal pattern having only the supraotic (SOT) and paired posterior interorbital (PITO) pores, only the second described Eviota species with this distinctive pattern. It has a dorsal/anal fin-ray formula of 9/8, one or more branched pectoral-fin rays, the fifth pelvic-fin ray a rudiment, and six postanal spots. The color pattern is also diagnostic: a translucent gray body with iridescent blue on the dorsal and anal fins and two diagonal dark-brown bars across the pectoral-fin base, the first dorsal fin crossed by two wide black bars, the second dorsal fin with three fully black vertical bars extending up from the base of the fin, and a smaller fourth bar at the end of the posterior fin rays.