Author List Which Start with [O]
- Otaki (おたき)
- Otaki Tetsuya
- Otakude Neet (小択出新都)
- otakumi
- Otama (おたま) (おたま)
- Otama Ryouichi (尾玉了一)
- Otame
- Otani Hiroko (大谷博子)
- Otani Jiro (大谷じろう)
- Otani Terumi (大谷てるみ)
- Otapyon (おたぴょん)
- Othello (オセロ)
- Other (他)
- Other Side (Hanamura Touko) (アザーサイド (花村トウコ))
- Oto Hisamu (音久無)
- Otogi (乙木)
- Otoguro Yuu (乙黒ゆう)
- Otoi Rekomaru (音井れこ丸)
- Otokasa Aki (乙佳佐明)
- Otokawa Akari (乙川灯) (乙川灯)
- Otokawa Kazuki (乙川霞月)
- Otoki Hiroshi (音木ひろし)
- Otokita Takao (おときたたかお)
- Otokuni (オトクニ)
- Otokuni En (乙國えん)
- Otomate (オトメイト)
- Otomezaka Kokoro (乙女坂心)
- Otomi Chisa (音海ちさ)
- Otomo Ai
- Otomo Katsuhiro
- Otomura Saeko (音村紗恵子)
- Otonaka Sawaki (音中さわき)
- Otonari Afuro (乙鳴アフロ)
- Otonashi Kanade (音無奏)
- Otonashi Kyosuke (音無響介)
- Otonashi Satsuki (音無砂月)
- Otonashi Yoika (音無よいか)
- Otonekone (おとねこね)
- Otono Natsu (音乃夏)
- Otonoao (オトノアヲ)
- Otoo Masaki (音尾マサキ)
- Otori Nana (鳳ナナ)
- Otori Reika
- Otosaki Tsubaki (音咲椿)
- OTOSAMA
- Otosato Ryoutarou (乙里玲太朗)
- Otoshibuta (オトシブタ)
- Otosu Mitsuya (乙須ミツヤ)
- OTOTACHIBANA (乙橘)
- Ototo (おとと)
- Ototoi Kitarou (おとといきたろう)
- Otoufu (オトウフ)
- Otowa Maria (音羽マリア)
- Otowa Satori (音羽さおり)
- Otoya Kurumi (音埜クルミ)
- Otoyoshi Kurewo (オトヨシクレヲ)
- Otsu Hiyori (乙ひより)
- Otsu Kimiko (乙津きみ子)
- Otsuha Ichika (乙葉一華)
- Otsuichi (乙一)
- Otsuji (おつじ)
- Otsuka Eiji (大塚英志)
- Otsuka Eishi
- Otsuka Yoko (大塚ヨウコ)
- Otsuki Kanto (大槻閑人)
- Otsuki Kenji (大槻ケンヂ)
- Otsukura Ringo (乙倉りんご)
- OU
- Ouba Asami (桜庭あさみ)
- Ouba Fumi (大羽ふみ)
- Ouchi (おーうち)
- Ouchi Kaeru (御家かえる) (御家かえる)
- Ouchi Rika (大內理加)
- Ouchi Yuu (央知夕)
- Ouga Atsuki (京山あつき)
- Ougami Shinya (王神新也)
- Ougi Masahiro (オウギマサヒロ)
- Ougi Yuzuha (扇ゆずは)
- Ouishi Hibi (大石日々)
- Ouizumi You (大泉洋)
- Oujima Mariku (桜嶋眞陸)
- Ouka (オウカ)
- Ouka Eruru (桜香 えるる)
- Ouka Mai (桜花舞)
- Ouka Sushi (桜花すし)
- Ouki Ayuri (央己あゆり)
- OUMA (ＯＵＭＡ)
- Oume Nanase (青梅ななせ)
- OUMI (桜海)
- Oumi Aco (桜巳亞子)
- Oumi Arisa (櫻美ありさ)
- Oumi Maiko (近江舞子)
- Oumi Noko (近江のこ)
- Oumi Shinano (青海信濃)
- Oumiya (近江谷) (近江谷)
- Ouno Touka (奥野 十香)
- Ouren (桜蓮)
- Ousaka Haru (欧坂ハル)
- Ousaka Mieko (逢坂みえこ)
- Ousaka Miya (逢坂みや)
- Ousawa Setsuna (逢沢雪名)
- Oushima Tamaki (王嶋環)
- Ousono Wataru (桜園わたる)
- Outa Gosaku (桜多吾作)
- Outa Guiya (太田ぐいや)
- Outi Kino (樹野こずえ)
- Ouya Saki (逢矢沙希)
- Overflow (オーバーフロー)
- Owada Hideki (大和田秀樹)
- Owada Tetsuo (小和田哲男)
- Owaki Chihiro
- Owari (えんど)
- Owari Yuki (尾張行)
- Owaru (おわる)
- ox
- Oyaji Kusa (オヤジ草)
- Oyama Gou (おやまごう)
- Oyama Machi (大山満千)
- Oyama Tetsuya (大山哲也)
- Oyama Yasunaga (尾山泰永)
- Oyamada Ami (小山田あみ)
- Oyamada Iku (小山田いく)
- Oyamada Mimu (おやまだみむ)
- Oyamada Tsutomu (小山田つとむ)
- Oyamada Youko (小山田容子)
- Oyamada Yuu (小山田ユウ)
- Oyanu (おやぬ)
- Oyoi (およい)
- Oyokawa Nao (及川七生)
- Oyoshikawa Kyouko (お吉川京子)
- Oyoyo (泳与)
- OYSTER (オイスター)
- Oyukake Gohan (お湯かけご飯)
- Ozai (オザイ)
- Ozaki Aki (尾崎亜紀)
- Ozaki Akira (オザキアキラ)
- Ozaki Akira (尾崎あきら) (尾崎あきら)
- Ozaki Akira (尾崎晶) (尾崎晶)
- Ozaki Hiroshi (尾崎弘)
- Ozaki Ira (尾崎衣良)
- Ozaki Kaho (緒崎カホ)
- Ozaki Kaori (尾崎かおり)
- Ozaki Kaoru (尾崎郁流)
- Ozaki Kouta (尾崎 航大)
- Ozaki Kumi (尾崎久海)
- Ozaki Mika (オザキミカ)
- Ozaki Minami (尾崎南)
- Ozaki Nachika (尾崎七千夏)
- Ozaki Yoshimi (尾崎芳美)
- Ozaki Yuusuke (尾﨑祐介)
- Ozasa Kazutoshi (小笹 和俊)
- Ozawa Akiko (小澤亜季子)
- Ozawa Akito (小沢章友)
- Ozawa Ami (緒沢亜美)
- Ozawa Hiroe (小沢広江)
- Ozawa Kana (小沢かな)
- Ozawa Kanon (小沢花音)
- Ozawa Kaoru (小沢カオル)
- Ozawa Kuriko (小沢孔璃子)
- Ozawa Makoto (小沢マコト)
- Ozawa Mari (小沢真理)
- Ozawa Nao (小澤奈央)
- Ozawa Ryu (大沢龍)
- Ozawa Satoru (小澤さとる)
- Ozawa Toshio (小沢としお)
- Ozawa Yuki (おざわゆき)
- Ozawada Kengo (小沢田健吾)
- Oze Akira (尾瀬あきら)
- ozet (ｏｚｅｔ)
- Ozoe Tsubaki (尾添椿)
- Ozu Kaworu (小津カヲル)
- Ozuno Lion (オズノらいおん)
- Oはぎ