9" () USS "Penobscot" (, ATA-188) USS "Pensacola" (1859, AG-13, CA-24, LSD-38) USS "Pentheus" () USS "Pentucket" () USS "Peony" () USS "Peoria" (1863, 1898, PF–67, LST-1183) USS "Peosta" (1857) USS "Pepperwood" () USS "Pequawket" () USS "Pequeni" () USS "Pequot" (1864, 1910, WARC-58) USS "Perch" (SS-176, SS-313) USS "Percival" (DD-298, DD-452) USS "Percy Drayton" () USS "Perdido" () USS "Peregrine" () USS "Perfecto" () USS "Peri" () USS "Peridot" () USS "Peril" () USS "Periwinkle" () USS "Perkins" (DD-26, DD-377, DD-877) USS "Permit" (SS-178, SSN-594) USS "Perry" (1843, DD-11, DMS-17, DD-844) USS "Perseus" (, AF-64) USS "Perseverance" () USS "Persistent" (PYc-48, AGOS-6, MSO-491) USS "Pert" (1812, PG–95) USS "Peshewah" () USS "Pessacus" () USS "Petaluma" (AOG-79) USS "Pete" () USS "Peter C. Struven" () USS "Peter Demill" () USS "Peter H. Crowell" () USS "Peterhoff" () USS "Petersburg" (AOT-9101) USS "Peterson" (DE-152, DD-969) USS "Peto" (SS-265) USS "Petoskey" (PC-569) USS "Petrel" (1846, 1862, PG-2, ASR-14) USS "Petrelita" () USS "Petrita" () USS Petrof Bay (CVE-80) USS "Petrolite" () USS "Pettit" (DE-253)