| Author | Titles | | 1.
| O'Connor, John, 1945- | 4 | | 2.
| O'Connor, Richard, 1915-1975 | 1 | | 3.
| O'Connor, Sonia | 1 | | 4.
| O'Connor, Tony, 1943- | 1 | | 5.
| O'Connor, V. C. Scott, 1869-1945 | 1 | | 6.
| O'Connor, Vincent Clarence Scott, 1869-1945 | 0 | | 7.
| Author is: O'Connor, V. C. Scott, 1869-1945 | 1 | | 8.
| The Octagon Museum (Washington, D.C., Estados Unidos) | 1 | | 9.
| Octave, M. M. C., 1948- | 1 | | 10.
| Octave, Marc, 1948- | 1 | | 11.
| Octávio da Veiga | 1 |
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