Lista e anime: O

Obake no Holly
 Obake no Q-Taro (1965)
 Obake no Q-Taro (1971)
 Obake no Q-Taro (1985)
 Ōban Star Racers
 Obocchama-kun
 Ocha-ken ~Chokotto no Gatari~ (2003)
 Ocha-ken ~Ri Kotto no Gatari~ (2006)
 Occhi di Gatto (early episodes)
 Occhi di Gatto (later episodes)
 Occhio ai fantasmi!
 Ochamegami Monogatari Kolokolo Polon
 Ochame-na Futago -Clare Gakuin Monogatari-
 O Czym Szumia Wierzby
 Odysseus 31
 Offside
 Ogon Bat
 Ogon Senshi Gold Lightan
 Ogon Yuusha Goldran
 Ohayo! Spank
 Oh Dorobo Jing
 Oh! Family
 Oh! My Kosobu
 Oh! My Goddess (1998)
 Oh! My Goddess (2005)
 Oh My Goddess! 
 Oh! Super Milk-chan
 Oideyo! Henamon Sekai Kasumin (2001)
 Oideyo! Henamon Sekai Kasumin (2002)
 Oi! Ryoma
 Oishinbo
 Oja-majo Doremi (1999)
 Oja-majo Doremi # (2000)
 Oja-majo Doremi Dokkaan (2002)
 Ojamajo Doremi Na-i-sho (2004)
 Ojamanga Yamada-kun
 Ojarumaru (1998)
 Ojarumaru (1999)
 Ojarumaru (2000)
 Ojarumaru (2001)
 Ojarumaru (2002)
 Ojarumaru (2003)
 Ojarumaru (2004)
 Ojarumaru (2005)
 Okami Shonen Ken
 Okawari Boy Starzan-S
 Okusama wa Joshikôsei
 Okusama wa Mahou Shoujo
 Olive et Tom
 Omakase Scrappers
 Omishi Mahou Gekijou Risky Safety
 Onbu Obake
 Onegai My Melody
 Onegai My Melody ~Kuru Kuru Shuffle!~
 Onegai Samia Don
 Onegai Teacher
 Onegai Twins
 One Piece
 Oniisama E ...
 Only You Viva! Kabakura
 Onmyou Taisenki
 Opowiesci z Palmowego Miasteczka
 Oraa Guzura Dado (1967)
 Oraa Guzura Dado (1987)
 Ordy et les Grandes Découvertes
 Ore wa Chokkaku
 Ore wa Teppei
 Orguss
 Oroshitate Musical Nerima Daikon Brothers
 Oruchuban Ebichu
 Osomatsu-kun (1966)
 Osomatsu-kun (1988)
 Otogi Jushi Akazukin
 Otogi Manga Calendar
 Otogi Story Tenshi no Shippo
 Otogi Zoushi
 Otoko do Aho! Koshien
 Otoko Ippiki Gakidaisho
 Otome wa Boku ni Koishiteru
 Ouran Koukou Host Club
 Ouran High School Host Club
 Outlaw Star
 OVERMAN King Gainer
 Ox Tales
 Oyayubi Hime Monogatari
 Oyoneko Bunyan
 Oz no Mahoutsukai
 Oz no Uchu Daiboken

Kategoria:Listat e anime