| Author | Titles | | 1.
| Ouseley, W. Gore | 1 | | 2.
| Ouspensky, Leonid | 1 | | 3.
| Ouspensky, Léonide | 1 | | 4.
| Oustinoff, Elizabeth | 1 | | 5.
| Outcault, Richard Felton, 1863-1928 | 1 | | 6.
| Outeiro, C. | 1 | | 7.
| Outerbridge, Graeme, 1950- | 1 | | 8.
| Outón Argibay, Menchu, 1969- | 1 | | 9.
| Outram, Dorinda | 1 | | 10.
| Outred, Francis | 1 |
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