Omamori Himari

Released: 2010

Omishi Mahou Gekijou: Risky★Safety

Released: 1999

Omishi Mahou Gekijou: Risky★Safety (Dub)

Released: 1999

Onara Gorou

Released: 2016

One Outs

Released: 2008

One Piece

Released: 1999

One Piece (Dub)

Released: 1999

One Piece Special

Released: 2000

One Punch Man (Dub)

Released: 2015

Onegai My Melody

Released: 2005

Onegai My Melody: Kuru Kuru Shuffle!

Released: 2006

Onegai Teacher

Released: 2002

Onegai Twins

Released: 2003

Onegai Twins (Dub)

Released: 2005

Onegai Twins EP OVA

Released: 2004

Oni: Thunder God's Tale

Released: 2022

Oni: Thunder God's Tale (Dub)

Released: 2022

OniAi

Released: 2012

OniAi Specials

Released: 2012

Onigiri (Dub)

Released: 2016