Filippo Reef is a reef that is asserted to be located in the Pacific Ocean at (05°30′S151°50′W), 450 km east of Starbuck Island in the Line Islands, which was reported by the master of the Italian barque Filippo as having been seen on 28 June 1886. From an unidentified report of breakers dated 1926, it is estimated to have a least water depth of only 0.6 to 0.9 meters, and appeared to be about 1.6 km long northwest to southeast, and less in width.