Groups
- ogura shoukai 10
- ogura souko 2
- ogura tankenka 12
- oguradou 2
- oh joy sex toy 28
- oh my gosh 32
- oh no 2
- oh no pico-da 1
- oh-banzai studio 15
- ohagi 9
- ohagi hangaku 1
- ohakotomeno 5
- ohanabatake 27
- ohanabatake typhoon 15
- oharaibako 17
- oharaya 9
- oharu kikaku 1
- ohayo yozy 3
- ohayou girls 2
- ohayou monster 1
- ohbanyakiteikoku 1
- oheya no sumikko 1
- ohgetsu 4
- ohige 9
- ohige no shishimai 35
- ohige yashiki 11
- ohiyakudasai 5
- ohizumi bakuretsutai 2
- ohka works 3
- ohkami 1
- ohkamisanto kinako bou 1
- ohkura bekkan 182
- ohmiya tsukasa 27
- ohnegs 8
- ohoshisamadou 117
- ohs 1
- ohsaka spirits 57
- ohtado 130
- ohtohcan 1
- oidean 9
- oidemase gesshokudou 4
- oideyasu honpo 19
- oideyo shikonayo no mori 1
- oikaze 3
- oikoranukotan 1
- oilan 16
- oimoto 10
- oinari hoikuen 1
- oinari summer 9
- oinari sun 1