- List of United States Navy ships, O
O
* USS "O'Bannon" (DD-177, DD-450, DD-987)
* USS "O'Brien" (TB-30, DD-51, DD-415, DD-725, DD-975)
* USS "O'Callahan" (FF-1051)
* USS "O'Flaherty" (DE-340)
* USS "O'Hare" (DD-889)
* USS "O'Kane" (DDG-77)
* USS "O'Neill" (DE-188)
* USS "O'Reilly" (DE-330)
* USS "O'Toole" (DE-527)
* USS "O-1" (SS-62)
* USS "O-2" (SS-63)
* USS "O-3" (SS-64)
* USS "O-4" (SS-65)
* USS "O-5" (SS-66)
* USS "O-6" (SS-67)
* USS "O-7" (SS-68)
* USS "O-8" (SS-69)
* USS "O-9" (SS-70)
* USS "O-10" (SS-71)
* USS "O-11" (SS-72)
* USS "O-12" (SS-73)
* USS "O-13" (SS-74)
* USS "O-14" (SS-75)
* USS "O-15" (SS-76)
* USS "O-16" (SS-77)
* USS "O. H. Lee" (1861)
* USS "O. M. Pettit" (1857)
* USS "Oahu" (PR-36, ARG-5)
* USS "Oak Hill" (LSD-7, LSD-51)
* USS "Oak Ridge" (ARD-19, ARDM-1)
* USS "Oakland" (1918, CL-95)
* USS "Oberlin" (PC-560)
* USS "Oberon" (AK-56/AKA-14)
* USS "Oberrender" (DE-344)
* USS "Obispo" (SS-382)
* USS "Observation Island" (T-AGM-23 )
* USS "Observer" (AMC-91, MSO-461)
* USS "Obstructor" (ACM-7)
* USS "Oceanographer" (AGS-3)
* USS "Oceanside" (LSM-175)
* USS "Oceanus" (ARB-2)
* USS "Ocelot" (IX-110)
* USS "Ochlockonee" (AOG-33)
* USS "Ocklawaha" (AO-84)
* USS "Ocmulgee" (YTB-532)
* USS "Ocoee" (SP-1208)
* USS "Oconee" (AT-31, AOG-34)
* USS "Oconostota" (YTB-375)
* USS "Oconto" (APA-187)
* USS "Octans" (AF-26)
* USS "Octavia" (AF-46)
* USS "Octopus" (SS-9)
* USS "Octorara" (1861, IX-139)
* USS "Odax" (SS-484)
* USS "Odum" (APD-71)
* USS "Ogden" (PF-39, LPD-5)
* USS "Ogeechee" (AOG-35)
* USS "Oglala" (CM-4)
* USS "Oglethorpe" (AKA-100)
* USS "Ohio" (1812, 1820, BB-12, BB-68, SSGN-726)
* USS "Ohioan" (1914)
* USS "Ojanco" (SS-381)
* USS "Ojen" (SP-957)
* USS "Okala" (ARS(T)-2)
* USS "Okaloosa" (APA-219)
* USS "Okanogan" (LPA-220)
* USS "Okinawa" (CVE-127, LPH-3)
* USS "Okisko" (YN-42/YNT-10/YTL-735)
* USS "Oklahoma" (BB-37)
* USS "Oklahoma City" (CL-91, SSN-723)
* USS "Olathe" (YTM-273)
* USS "Old Colony" (SP-1254)
* USS "Old Columbia" (C-12)
* USS "Old Dominion" (ID-3025)
* USS "Oldendorf" (DD-972)
* USS "Oleander" (1863, WAGL-264)
* USS "Oliver H. Lee" (1861)
* USS "Oliver Hazard Perry" (FFG-7)
* USS "Oliver Mitchell" (DE-417)
* USS "Oliver Wolcott" (1832)
* USS "Olivin" (PYc-22)
* USS "Olmsted" (LPA-188)
* USS "Olney" (PC-1172)
* USS "Olympia" (C-6, SSN-717)
* USS "Olympic" (SP-260)
* USS "Omaha" (1869, CL-4, SSN-692)
* USS "Ommaney Bay" (CVE-79)
* USS "Onandago" (YP-6)
* USS "Ondina" (1899)
* USS "Oneida" (1810, 1861, 1898, SP-765, APA-221)
* USS "Oneka" (YN-35/YNT-3/YTB-729)
* USS "Oneonta" (SP-1138)
* USS "Oneota" (1864, AN-85/YM–110)
* USS "Oneyana" (YTB-262)
* USS "Onkahye" (1843)
* USS "Ono" (SS-357)
* USS "Onockatin" (YTB-277)
* USS "Onondaga" (1864, 1917, 1941)
* USS "Onset" (SP-1224)
* USS "Onslow" (AVP-48)
* USS "Ontario" (1812, 1813, AT-13)
* USS "Ontonagon" (AOG-36)
* USS "Onward" (1852, SP-311)
* USS "Onward II" (SP-728)
* USS "Onwego" (PYc-48)
* USS "Onyx" (PYc-5)
* USS "Oosterdijk" (1913)
* USS "Opal" (PYc-8)
* USS "Opelika" (YTB-798)
* USS "Ophir" (1904)
* USS "Opponent" (AM-269)
* USS "Opportune" (ARS-41)
* USS "Ora" (SP-75)
* USS "Oracle" (AM-103)
* USS "Orange" (PF-43)
* USS "Orange County" (LST-1068)
* USS "Oratamin" (YTB-347)
* USS "Orca" (SS-34, SP-726, SS-381, AVP-49)
* USS "Orchid" (WAGL-240)
* USS "Ordronaux" (DD-617)
* USS "Oregon" (1841, 1869, BB-3)
* USS "Oregon City" (CA-122)
* USS "Oregonian" (1918)
* USS "Orestes" (AGP-10)
* USS "Oriole" (1865, 1904, AM-7, MHC-55)
* USS "Orion" (1869, AC-11, AS-18)
* USS "Oriskany" (CV-34)
* USS "Orizaba" (ID-1536/AP-24)
* USS "Orlando" (PF-99)
* USS "Orleans Parish" (LST-1069)
* USS "Orleck" (DD-886)
* USS "Ormsby" (APA-49)
* USS "Orono" (YTB-190)
* USS "Ortolan" (AM-45, LCI (L)-976/AMCU-34/MHC-34, ASR-22)
* USS "Orvetta" (1861, IX-157)
* USS "Osage" (1863, LSV-3)
* USS "Osamekin" (YTB-191)
* USS "Osberg" (DE-538)
* USS "Osborne" (DD-295)
* USS "Oscar Austin" (DDG-79)
* USS "Osceola" (1864, 1869, AT-47, YTB-129)
* USS "Oshkosh" (YTB-757)
* USS "Oskaloosa" (1918)
* USS "Oskawa" (1919)
* USS "Osmond Ingram" (DD-255/AVD-9/ADP-35)
* USS "Osmus" (DE-701)
* USS "Osprey" (AMC-29, MHC-51, MSCO-28)
* USS "Osprey II" (SP-298)
* USS "Ossahinta" (YTB-278)
* USS "Ossipee" (1861, WPG-50)
* USS "Ostara" (AKA-33)
* USS "Osterhaus" (DE-164)
* USS "Ostfriesland" (1909) formerly the SMS "Ostfriesland")
* USS "Ostrich" (SP-1249, AMc-51, YMS-430)
* USS "Oswald" (DE-767)
* USS "Oswald A. Powers" (DE-542)
* USS "Oswegatchie" (YTB-515)
* USS "Otis W. Douglas" (SP-313)
* USS "Otokomi" (YTB-400)
* USS "Otsego" (1840, 1864, 1869, 1919)
* USS "Ottawa" (1861, AKA-101)
* USS "Otter" (YFB-663, DE-210)
* USS "Otterstetter" (DER-244)
* USS "Ottumwa" (YTB-761)
* USS "Otus" (AS-20)
* USS "Ouachita" (1863)
* USS "Ouachita County" (LST-1071)
* USS "Ouellet" (FF-1077)
* USS "Outagamie County" (LST-1073)
* USS "Outpost" (YAGR-10)
* USS "Overseer" (AM-321)
* USS "Overton" (DD-239/APD-23)
* USS "Overton County" (LST-1074)
* USS "Owachomo" (YTB-401)
* USS "Owaissa" (SP-659)
* USS "Owasco" (1861)
* USS "Owatonna" (YTM-756)
* USS "Owen" (DD-536)
* USS "Owera" (SP-167)
* USS "Owl" (AM-2, LCI(L)-982)
* USS "Owyhee" (LFR-515)
* USS "Owyhee River" (LSMR-515)
* USS "Oxford" (APA-189, AG-159)
* USS "Oyster Bay" (AGP-6)
* USS "Ozama" (1916)
* USS "Ozark" (1863, BM-7, MCS-2)
* USS "Ozaukee" (SP-3439)
* USS "Ozbourn" (DD-846)
* USS "Ozette" (YTB-541, YTB-541)External links
* [http://www.chinfo.navy.mil/navpalib/ships/lists/homeport.html navy.mil: List of homeports and their ships]
* [http://www.history.navy.mil/danfs/index.html "Dictionary of American Naval Fighting Ships"]
* [http://www.nvr.navy.mil/nvrships/NAME.HTM Naval Vessel Register]
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