Encyclopedia 'O' Releases
| Title | Time [Pages] | Dist. | Release | SRP |
| Okamikakushi: Masque of the Wolf - Complete Collection (Sub.DVD) | 300 | Sentai | 2013-05-28 | $49.98 |
| Omamori Himari (GN 10) | [160] | Yen | 2013-05-28 | $11.99 |
| One Piece (GN 67) | [224] | VIZ | 2013-06-04 | $9.99 |
| One Piece [Omnibus] - Baroque Works (GN 6) | [576] | VIZ | 2013-06-04 | $14.99 |
| Ōoku: The Inner Chambers (GN 8) | [224] | VIZ | 2013-09-17 | $12.99 |
| Ōoku: The Inner Chambers (GN 9) | VIZ | 2014-01-21 | $12.99 | |
| Oreimo (GN 3) | [176] | DH | 2013-06-26 | $10.99 |
| Oresama Teacher (GN 14) | [200] | VIZ | 2013-07-02 | $9.99 |
| Otodama: Voice from the Dead (GN 2) | [200] | DMP | 2013-10-30 | $12.95 |
| Otomen (GN 16) | [192] | VIZ | 2013-08-06 | $9.99 |
| Outlaw Star - Complete Collection (DVD/R2) | 650 | Anime | 2013-08-19 | $34.99 |


