| Name | Total | ... |
|---|---|---|
| Obsession | 1 | GO |
| Obsidian Order | 5 | GO |
| Obumanjuu | 8 | GO |
| Oc5 | 1 | GO |
| Ochigan | 5 | GO |
| Ochikochitei | 3 | GO |
| Ochikonium | 26 | GO |
| odaku | 2 | GO |
| Odenden | 6 | GO |
| ODENYA | 2 | GO |
| odin | 16 | GO |
| ody! | 1 | GO |
| Ofuton de Suyaa | 4 | GO |
| Ogawa Hidari | 1 | GO |
| Ogeretsu-dan | 4 | GO |
| Ogerwillow | 1 | GO |
| Ogura Shoukai | 1 | GO |
| Ohanabatake | 3 | GO |
| Oharaibako | 2 | GO |
| Oharaya | 2 | GO |
| Ohkura Bekkan | 22 | GO |
| Ohoshisamadou | 5 | GO |
| Ohsaka Spirits | 3 | GO |
| OHTADO | 5 | GO |
| Oishii Oniku | 1 | GO |
| Oishii Udon | 1 | GO |
| OJ | 1 | GO |
| OJmomo | 2 | GO |
| Ojopie Sentimental | 2 | GO |
| Ojou No Yokushitsu | 12 | GO |
| Oka No Ue | 1 | GO |
| Okadatei | 10 | GO |
| Okano Hajimetei | 2 | GO |
| Okarutou | 1 | GO |
| Okashi Factory | 1 | GO |
| Okashi Tai | 2 | GO |