Anime Starting with O

Browse anime titles starting with letter O on 9Anime. Complete A-Z anime directory.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9 All
One Piece1999Ep 1180

One Piece

TV 8.7
Outlaw Star1998Ep 24

Outlaw Star

TV 7.8
Overgeared2026Ep 12

Overgeared

TV 7.5
One-Punch Man2025Ep 12

One-Punch Man

TV 4.8
Overlord2023Ep 1

Overlord

ONA 7.1
Ojisan and Marshmallow2016Ep 12

Ojisan and Marshmallow

TV 6.6
OniAi2012Ep 12

OniAi

TV 6.4
Orb: On the Movements of the Earth2024Ep 25

Orb: On the Movements of the Earth

TV 8.7
Ouran High School Host Club2006Ep 26

Ouran High School Host Club

TV 8.2
Over Drive2007Ep 26

Over Drive

TV 7.5
O Maidens in Your Savage Season2019Ep 12

O Maidens in Your Savage Season

TV 7.3
Ōban Star-RacersEp 26

Ōban Star-Racers

TV
Obey Me!2022Ep 12

Obey Me!

ONA 7.1
Oblivion Battery2024Ep 12

Oblivion Battery

TV 7.5
Occult Academy2010Ep 13

Occult Academy

TV 7.0
Occultic;Nine2016Ep 12

Occultic;Nine

TV 6.9
Oda Cinnamon Nobunaga2020Ep 12

Oda Cinnamon Nobunaga

TV 6.6
ODDTAXI2021Ep 13

ODDTAXI

TV 8.6
Oedo Fire Slayer -The Legend of Phoenix-2026Ep 12

Oedo Fire Slayer -The Legend of Phoenix-

TV 5.5
Ogre Slayer1994Ep 4

Ogre Slayer

OVA 6.4
Oh Boy, Was I Wrong About Her2026Ep 12

Oh Boy, Was I Wrong About Her

TV 6.6
Oh, Suddenly Egyptian God2023Ep 10

Oh, Suddenly Egyptian God

ONA 6.6
Oh! Edo Rocket2007Ep 26

Oh! Edo Rocket

TV 7.2
OishinboEp 136

Oishinbo

TV
Okami-san and Her Seven Companions2010Ep 12

Okami-san and Her Seven Companions

TV 7.2
Okamikakushi: Masque of the Wolf2010Ep 12

Okamikakushi: Masque of the Wolf

TV 6.3
OKITSURA: Fell in Love with an Okinawan Girl, but I Just Wish I Know What She's Saying2025Ep 12

OKITSURA: Fell in Love with an Okinawan Girl, but I Just Wish I Know What She's Saying

TV 7.1
Okko's InnEp 24

Okko's Inn

TV
Omamori Himari2010Ep 12

Omamori Himari

TV 6.8
Omishi Magical Theater Risky SafetyEp 24

Omishi Magical Theater Risky Safety

TV
Once Upon a Time... Life1986Ep 26

Once Upon a Time... Life

OVA 7.2
Once Upon a Time… Space1982Ep 26

Once Upon a Time… Space

TV 6.7
Once Upon a Witch's Death2025Ep 12

Once Upon a Witch's Death

TV 7.4
One Morning, My Hair was in Poor Condition, and my Life Began2022Ep 12

One Morning, My Hair was in Poor Condition, and my Life Began

TV 5.0
One Off2012Ep 4

One Off

OVA 6.4
One Outs2008Ep 25

One Outs

TV 8.3