Music Artists, Casts, Authors Beginning with O
- Official HIGE DANdism
- OFUROSUKI
- OGATA HIROMI
- OHARA YUIKO
- OHNO KATSUO
- OHTAKA SIZZLE
- OKAZAKI TAIIKU
- OKI KOUSUKE
- OLDCODEX
- Omi Minami
- OnePixcel
- onetrap
- ORGEL
- Orgel+
- Osamu Sakata
- Osamu Sakata
- OSATO NAO
- OTOMO JUN
- OTOMO TAKESHI & SUZUKI TSUBASA
- Otowa Yurikagokai
- Otowa Yurikagokai
- OUI&RIO
- Over The Rainbow
- OZAWA KAZUTO
- OZAWA KAZUTO.URANAKA KOUICHI