Filippo Reef is a coral reef in the Pacific Ocean. It is located at , east of Starbuck Island in the Line Islands. The reef was reported by the master of the Italian barque "Filippo" who saw it on 28 June 1886. From an unidentified report of breakers dated 1926, it was estimated to have a water depth of only , and appeared to be about long northwest to southeast, and less in width.