Author List Which Start with [O]
- O-DEN
- O-ji (おーじ)
- O-tsuka Reika (大塚麗夏)
- O.Muler
- O.RI (O・ RI)
- O.RI・他
- O/p.com (おぽこむ)
- O33
- OA (Author)
- OAGE-TAITAN
- Obake (おばけ)
- Obata Hiroyuki (小幡寛之)
- Oborotsuki Kakeru (朧月カケル)
- Obui (おぶい)
- Obyaa (おびゃー)
- Ocha (おちゃ)
- Ochanoko (お茶の子)
- Ochita Taiji (越智多たいじ)
- Oda Haiji (織田灰至)
- Oda Kenichi (おだけんいち)
- Oda non (織田non)
- Odawara Hakone (オダワラハコネ)
- ODD
- Oden (おデン)
- ODEX
- Odochi (おどち)
- Ogadenmon (オガデンモン)
- OGAI
- Ogami Kazuki (拝一樹)
- Ogami Wolf (拝狼)
- Ogata
- Ogata Gatarou (オガタガタロー)
- Ogata Hiro (御形紘)
- Ogata Mamimi (緒方マミ美)
- Ogata Satomi (緒方賢美)
- Ogata Zen (尾形 全)
- OgataAz
- Ogataya Haruka (御形屋はるか)
- Ogawa Eru (緒川える)
- Ogawa Hidari (小川ひだり)
- Ogawa Hiroshi (緒河悠)
- Ogawa Kurumi (小川くるみ)
- Ogawa Masashi (小川雅史)
- Ogawa Renji (小河レンジ)
- OGIKEN
- Oginawa (おぎなわ)
- Ogino Atsuki (荻野アつき)
- Ogipote (荻pote)
- Ogre (Author)
- Ogu (おぐ)
- OGU
- Ogura Aya (小椋彩)
- Ogura Cheshire (小倉チェシャ)
- Ogura Shuuichi (小倉脩一)
- OGW
- Oh! Great (大暮維人)
- Ohagi-san (おはぎさん)
- Ohara Hiroki (緒原博綺)
- Ohara Tometa (小原 トメ太)
- Ohayou (おはよう)
- Ohba Yohkyoh (鶯羽 佯狂)
- Ohbayashi Mori (大林 森)
- Ohigetan (Author) (おひげたん)
- Ohio-shuu Riki (オハイオ州力)
- Ohiru (お昼)
- Ohishi Masaru (大石まさる)
- Ohkawa Aoi (大川葵)
- Ohkura Kazuya (大蔵一也)
- OHLAND
- Ohmi Takeshi (大見武士)
- Ohnaka Ito (大仲いと)
- Ohnami Youko (大波耀子)
- Ohnegs (オーネグス)
- Ohno Masaakira (大野昌晶)
- Ohsaka Minami (逢坂ミナミ)
- Ohta Takeshi (おおたたけし)
- Ohtsuka Kotora (大塚子虎)
- Ohwada Tomari (大輪田泊)
- OHYANV2
- Oi-de Chosuke (大出長介)
- Oida Cute (乙一大弓冬)
- Oie Kaeru (御家かえる)
- Oimo
- Oimoto Jirou (おいもとじろう)
- Oinari (おいなり)
- Oinari Yukke (おいなりユッケ)
- Oji (オジィ)
- Ojipon (おじポン)
- Ojo (おじょ)
- OJo
- Oka Shouhei (岡昌平/他)
- Oka Sundome (岡すんどめ)
- Okabayashi Beru (岡林べる)
- Okada Kou (岡田コウ)
- Okada Masanao (岡田正尚)
- Okada Matsuoka (おかだまつおか)
- Okagiri Sho (岡霧硝)
- OKAMA (おかま)
- Okamoto Daisuke (おかもと大輔)
- Okamoto Fujio (おかもと ふじお)
- Okamura Morimi (岡村杜巳)
- Okano Ahiru (陸乃家鴨)
- Okano Hajime (おかのはじめ)
- Okara (おから)
- Okatora (岡虎)
- OKAWARI (おかわり)
- OKAWARI・他
- Okayado (オカヤド)
- Okayu (okayu)
- Okayu-san (おかゆさん)
- Okazaki Nao (岡崎那緒)
- Okazaki Takeshi (岡崎武士)
- Oki Yukao (沖由佳雄)
- OKiNA
- OKINA
- Okina Sai (翁さい)
- OKINA 他
- Okinaga Umanosuke (翁賀馬乃助)
- OKINA、こけこっこ☆こま、他
- OKINA・火浦R
- Okino Ryuuto (沖野琉人)
- Okiraku Nikku (お気楽ニック)
- OKIRAM (沖史慈 宴)
- Okiram
- Okita Ababa (沖田あばば)
- OKIURA ノシ
- Okosama Lunch (Author) (おこさまランチ)
- Okumori Boy (奥森ボウイ)
- Okumoto Yuuta (オクモト悠太)
- Okuni Yoshinobu (小國 由喜)
- Okunoha (奥ヴぁ)
- Okuta Kei (おくた慧)
- Okuya Sei (奥矢星)
- Okyou (おきょう)
- Okyuuri (おきゅうり)
- Oli
- Omapooh (おまぷー)
- Omaru (おまる)
- Omecho (おめちょ)
- OMEGA2-D (Author)
- Omi (おみ)
- Omi Asuma (遊馬臣)
- Ominaeshi (おみなえし)
- Omizu (おみず)
- Omizu Chihiro (オミズチヒロ)
- Omochi (おもち)
- Omoutubo (思うつぼ)
- OMZR
- ON (Author)
- ONAKA
- Onaka Emi (小中えみ)
- Onamaru (おな丸)
- Onda Chiro (恩田チロ)
- ONE (Author)
- ONEGROSS (Author)
- Oni-noboru (Oni‐noboru)
- Onigiri-kun (おにぎり君)
- ONIGUNSOW (Author)
- ONIHIME (鬼姫)
- Onija Tarou (鬼邪太郎)
- Oniku (お肉)
- Oniku. (お肉。)
- Onikubo Hirohisa (鬼窪 浩久)
- ONION (Author)
- ONIX (Author)
- Oniyazu Kakashi (鬼八頭かかし)
- Onizuka Naoshi (鬼束直)
- Onizuka Takuto (鬼塚たくと)
- Oni−noboru
- Ono Kenuji (尾野けぬじ)
- Ono Misao (小野ミサオ)
- Onomeshin (オノメシン・他)
- Onsen Tamago (温泉玉子)
- Onsoku Zekuu (己即是空)
- Ooba Kagerou (大場陽炎)
- Ooba Nii (大庭新)
- Oobanburumai (オオバンブルマイ)
- Oobari Masami (大張正己)
- OOE
- Oofuji Reiichirou (大藤玲一郎)
- Oohashi Kaoru (大橋薫)
- Oohashi Takayuki (オオハシタカユキ)
- Oohira Sunset (太平さんせっと)
- OOHM
- Ooishi Kou (大石コウ)
- Ooishi Nakani (大石中二)
- Ooishi Ryuuko (大石竜子)
- Ookami Ryousuke (狼亮輔)
- Ookami Uo (オオカミうお)
- Ookawa Bukubu (bkub/大川ぶくぶ・他)
- Ookubo Matagi (おおくぼマタギ)
- Ookuma Nekosuke (大熊猫介)
- Oomori Harusame (大守春雨)
- Oomori Makoto (大森誠)
- Oona Mitsutoshi (おおなみつとし)
- Oonita Hiroyuki (大仁田ヒロユキ)
- Oono (オオノ)
- Oono Tetsuya (大野哲也)
- Oonuki Makuri (大貫まくり)
- Oonuma Hiroshi (おおぬまひろし)
- OOPARTZ
- OOPS (Author)
- Oosaka Hananoko (大阪花之呼(大阪花之子))
- Oosawa Ofuda (大沢おふだ)
- Oosawara Sadao (おおさわらさだお(大童貞男))
- Oose Tsunami (大瀬津波)
- Ooshima Hiroyuki (おおしまひろゆき)
- Ooshima Ryou (大嶋亮)
- Ooshima Takeshi (大島岳詩)
- Ooshima Tomo (大島智)
- Ooshima Towa (大島永遠)
- Oota Yuuichi (大田優一)
- Ootake Pashio (大竹パシ夫)
- Ootani Mikoto (大谷みこと)
- Ootomo Megane (大朋めがね)
- Ootomo Takuji (大友卓二)
- Ootori Mahiro (鳳まひろ)
- Ootori Ryuuji (おおとりりゅうじ)
- Ootsuka Mahiro (オオツカマヒロ)
- Ootsuka Poteto (大塚ぽてと)
- Ootsuki Hiroko (大槻弘子)
- Ootsuki Michirowo (大槻ミチロヲ)
- Ootsuki Ryouko (大月涼子)
- Ootsuki Wataru (大月渉)
- Oouso (大嘘)
- Ooyari Ashito (大槍葦人)
- Oozora Wakaba (大空若葉)
- Opossa (オポッサ)
- Orange Bull (牛橘)
- Ordan (おるだん)
- Ore P 1-gou (Author) (オレP1号)
- Orenchin (おれんちん)
- OrGA
- Orge
- Ori (Author)
- ORICO
- Orico (オリコ) (オリコ)
- Origuchi (折口)
- Orihata (オリハタ)
- Orihi Chihiro (織日ちひろ)
- ORIHIME
- ORIKAWA (折川)
- Orikuchi Hirata (折口ヒラタ)
- Orikura Makoto (織倉まこと)
- Orimoto Mimana (おりもとみまな)
- Orita (オリタ)
- Oriue Wato (織上ワト)
- ORO (Author)
- Oroneko (おろねこ)
- ORTO (Author)
- Orutoro (おるとろ)
- ORVAL (Author)
- Oryo (おりょう)
- OS (Author)
- OS HIRO
- OS HIRO・もりこ
- Osada Kaname (長田要)
- OsaEXIV
- Osafune (オサフネ)
- Osakana (ヲさかな)
- Osakana Sankaku (御魚三角)
- Osaki (オオサキ)
- Osatou (おさとう)
- Oshare Kyoushitsu (おしゃれ教室)
- Oshiki Hitoshi (御敷仁)
- Oshima Aki (大島あき)
- Oshino Shinobu (忍野しのぶ)
- Oshiume Nyora (押梅にょら)
- Oshiuri (オシウリ)
- Osomatsu (おそまつ)
- Osuzu Akiomi (尾鈴明臣)
- Otabe Sakura (おたべ★ダイナマイツ)
- Otakumin (御宅民)
- OTAMA
- OTAMA ほか
- Other (他)
- Oto (ぉとぉ)
- Otochichi (おとちち)
- Otokawa Kaduki (乙川カヅキ)
- Otokawa Kazuki (乙川霞月)
- Otonashi Kyosuke (音無響介)
- Otone (音音)
- Otono Natsu (音乃夏)
- Otooto Kanata (音々かなた)
- Otsu (乙)
- Otsuki Miharu (鳴月みはる)
- Otsumaru (乙丸)
- Ouchi Kaeru (楝蛙)
- Ougon Dokuro (黄金髑髏)
- Oujano Kaze (王者之風)
- Ouji Tsukino (王子月乃)
- Ouka Sushi (桜花すし)
- OUMA (逢魔)
- Ouma Bunshichirou (逢魔文七郎)
- Ouma Tokiichi (逢魔刻一)
- Ousawa Kanata (桜沢かなた)
- Ouse Riruka (桜瀬りるか)
- Outou Chieri (桜桃千絵里)
- Outsuki Masaru (桜月マサル)
- OUYAN
- OUYANV2
- Over EAU Ball (Author)
- OVER-Q
- Overflow (オーバーフロー)
- Owari Umeshige (尾張ウメシゲ)
- OXIDE.Lab (Author)
- OXIDEENGINE
- Oyabe Ryo (小矢部亮)
- Oyama Kumotsuru (小山雲鶴)
- Oyama Yasunaga (尾山泰永)
- OYAZI
- Oyster (オイスター)
- Oyu no Kaori (お湯の香り)
- OZ (Author)
- Oz (Author)
- Ozaken (オザケン)
- Ozaki Akira (尾崎 晶)
- Ozaki Miray (尾崎未来)
- Ozawa Reido (小澤零人)
- Ozawa You (小沢悠)
- Ozawada Kengo (小沢田健吾)
- Ozumaro (おずまろ)
- Ozuno Mahou (緒図乃真朋)
- OZ猫
- O・LUM
- O・RI
- O次郎
- O沢ばけこ
- O.RI