| Status | Name | Rate | Years Aboard | Location | Notes | | | O'Brien, Ernest John | SN | 1945 | | Plankowner | | EP | O'Connor, Joseph E. | CDR | 1966-1968 | | 13th CO | | | O'Hara, James J. | ENC | 1950-1952 | | | | P | O'Neal, Michael A. | TM2 | 1968-1970 | Lexington GA | | | | Oakes, John J. Jr. | ET3 | 1949 | | | | EP | Oaks, Harvey E. | HMC | 1963-1964 | | | | EP | Oates, Richard E. | FN | 1945-1946 | | | | EP | Oates, Sammie E. | FN | 1947 | | | | P | Obarski, Clemens F. | EN3 | 1965-1967 | Crete IL | "Ski" | | EP | Oberbroeckling, Gary R. | EM3 | 1961-1964 | | | | | Obrien, William J. | EN2 | 1968 | | | | P | Ogden, Richard W. | RM3 | 1959-1960 | Plain City OH | | | EP | Ohlin , John R. | HMC | 1955 | | | | | Olive, William E. | ENC | 1966 | | | | EP | Olsen, Arthur J. | EN1 | 1955-1956 | | | | UA | Olson, Arlo John | SA | 1948-1949 | Arlington TX | | | EP | Olufsen , Albert E. | RM1 | 1945 | | | | EP | Orpe, Gary N. | FT2 | 1964-1965 | | | | EP | Orr, John D. | LTJG | 1964-1966 | | | | P | Orstad, Paul W. | TMSN | 1960 | Norwich CT | | | UA | Orstad, Rodney D. | FN | 1955 | Everett WA | | | EP | Orvin, Norman P. Jr. | MMC | 1958 | | | | | Osborn, Alan A. | EM3 | 1959 | | | | | Osborne, Thomas W. | MMFA | 1963 | | | | | Ostrander, Ronald L. | CS3 | 1967-1968 | | | | EP | Otto, Clarence R. | SOS2 | 1958-1961 | | | | UA | Overcash, Harry Wayne | SOS2 | 1961-1964 | Charlotte NC | "Wayne" | | P | Owens, Kenneth Zeno | ETRSN | 1961-1962 | Pinehurst NC | | | EP | Owskey, Thomas | RM3 | 1949-1951 | | |
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