[Edit]
Anime/video games
1997
* Photon: The Idiot Adventures (Aun Freya)
* Tenchi Muyo Movie 2: Daughter of Darkness (unnamed)
1998
* Bubblegum Crisis Tokyo 2040 (Galatea)
* Cowboy Bebop (Girl A)
* Akihabara Dennou Gumi (Francheska)
* Kurogane Communication (Haruka)
* Sorcerous Stabber Orphen (Fiena)
* St. Luminous Mission High School (Lita Ford)
* Steam Detectives (Gina)
* Weiß Kreuz (Aya Fujimiya- Aya/Ran's sister)
1999
* Arc the Lad (Lieza)
* Dangaizer 3 (Pikushisu)
* Omishi Magical Theater: Risky Safety (Suzuko Natsume)
* To Heart (Multi)
* Trouble Chocolate (Mint)
2000
* Ah! My Goddess: The Movie (Chrono (Kurono))
* Argento Soma (Sue Harris)
* Attack Armor Audian (Kororu Kuweizaa)
* full moon wo sagashite (Meroko)
* Gate Keepers (Kyanari)
* Infinite Ryvius (Michelle Cay)
* Kikaider (Mitsuko Komyoji)
* Love Hina (Naru Narusegawa)
* Mon Colle Knights (Rokuna Hiiragi)
* Sci-fi Harry (Catherine Chapman)
* Skies of Arcadia (Fina)
2001
* Angelic Layer (Hiromi Fujimori)
* Comic Party (Multi)
* Dead or Alive 3 (Hitomi)
* Figure 17 (Sakura Ibaragi)
* Fruits Basket (Tohru Honda)
* Love Hina Again (Naru Narusegawa)
* Mon Colle Knights (Rockna Hiragi)
* Prétear (Takako/Mikage)
* Shaman King (Iron Maiden Jeanne and Lilly)
* Sister Princess (Sakuya)
* Tales of Eternia: The Animation (Corina Solgente)
* Z.O.E ~Zone of the Enders~ (Celvice Klein)
2002
* Canary (Madoka)
* Ground Defense Force! Mao-chan (Silvia Maruyama)
* Kanon (Ayu Tsukimiya)
* Jing: King of Bandits (Mirabelle)
* Magical Shopping Arcade Abenobashi (Amiryun in ep. 8)
* Pia Carrot Movie (Orie Amano)
* Samurai Deeper Kyo (Yuya Shiina)
* Shrine of the Morning Mist (Koma)
* Sister Princess: Re Pure (Sakuya)
* Spiral: The Bonds of Reasoning (Rio Takeuchi)
2003
* Bottle Fairy (Sarara)
* D.C.: Da Capo (Kotori Shirakawa)
* Dead or Alive Xtreme Beach Volleyball (Hitomi)
* Kanon Kazahana (Ayu Tsukimiya)
* The Mythical Detective Loki Ragnarok (Mayura Daidouji)
* Nanaka 6/17 (Yuriko Amemiya)
* Ultra Maniac (Ayu Tateishi)
2004
* Re: Cutie Honey (Kisaragi Honey)
* Dead or Alive Ultimate (Hitomi)
* Futakoi (Kaoruko Ichijo)
* Futakoi Alternative (Kaoruko Ichijo)
* Jubei-chan 2 (Jiyuu Nanohana / Jubei Yagyu II)
* Mars Daybreak (Megumi Higashibara)
* School Rumble (Eri Sawachika)
* 10 Tokyo Warriors (Futaba Amitaka)
* To Heart: Remember My Memories (Multi)
* Yugo the Negotiator (Najenka (Russia chapter))
* Winx Club (2nd season) Musa
2005
* Air (cameo) (Ayu Tsukimiya)
* D.C.S.S.: Da Capo Second Season (Kotori Shirakawa)
* Dead or Alive 4 (Hitomi)
* Immortal Grand Prix (Fantine Valgeon)
* Loveless (Ginka)
* Mahoraba ~Heartful Days~ (Tamami Chanohata)
* Mahou Sensei Negima (Makie Sasaki)
* Paniponi Dash! (Miyako Uehara)
* School Rumble OVA (Eri Sawachika)
* Shining Force Neo (Meryl)
* The Law of Ueki (Pecoru)
* The Wings of Rean (Erebosu)
2006
* Canvas 2: Niji Iro no Sketch (Beauty artist in ep 24)
* D.Gray-man (Mei-Ling)
* Dead or Alive Xtreme 2 (Hitomi)
* Dōbutsu no Mori (Ai)
* Inukami! (Youko)
* Kanon (Ayu Tsukimiya)
* Kashimashi: Girl Meets Girl (Yasuna Kamiizumi)
* Higurashi No Naku Koro Ni Matsuri (Hanyuu)
* Kidou Senshi Gundam CLIMAX U.C. (Ellen Rochefil)
* Negima!? (Makie Sasaki)
* Otome wa Boku ni Koishiteru (Mizuho Miyanokōji)
* Ray the Animation (Sumire)
* Rumble Roses XX (Makoto Aihara / The Black Belt Demon)
* School Rumble 2nd Term (Eri Sawachika)
* Virtua Fighter 5 (Aoi Umenokouji)
* Zero no Tsukaima (Siesta)
2007
* D.C. II: Da Capo II (Yume Asakura)
* Gakuen Utopia Manabi Straight! (Manami Amamiya)
* Higurashi no Naku Koro ni Kai (Hanyuu)
* Idolmaster: Xenoglossia (Yukiho Hagiwara)
* Nagasarete Airantō (Suzu)
* Shining Tears X Wind (Touka Kureha)
* Sky Girls (Nanae Fujieda)
* Starchild Loner (May Fuyu)
* Suteki Tantei Labyrinth (Byakko)
* Tokyo Majin Gakuen Kenpuchō: Tō (Aoi Misato)
* Zero no Tsukaima: Futatsuki no Kishi (Siesta)
2008
* D.C. II: Da Capo II Second Season (Yume Asakura)
* Hyakko (Chie Suzugazaki)
* Ikki Tousen: Great Guardians (Sonken Chuubou)
* Persona 4 (Chie Satonaka)
* School Rumble 3rd Term (Eri Sawachika)
* The Tower of Druaga: the Aegis of Uruk (Fatina)
* Toradora! (Minori Kushieda)
* Vampire Knight (Yuki Cross)
* Vampire Knight Guilty (Yuki Cross/Kuran)
* Virtua Fighter 5 R (Aoi Umenokouji)
* Wagaya no Oinari-sama. (Miyako Takagami)
* Zero no Tsukaima: Princesses no Rondo (Siesta)
2009
* Aoi Hana (Kyōko Ikumi)
* Bakemonogatari (Tsubasa Hanekawa)
* Hayate the Combat Butler!! (Sonia Shaflnarz)
* Higurashi no Naku Koro ni Rei (Hanyū)
* Natsu no Arashi! (Kanako Yamazaki)
* Saki (Mihoko Fukuji)
* The Tower of Druaga: the Sword of Uruk (Fatina)
* Umineko no Naku Koro ni (Maria Ushiromiya)
Drama CDs
* Bludgeoning Angel Dokuro-Chan (Dokuro-chan)
* Pandora Hearts (Sharon Reinsworth)
* Rozen Maiden (Shinku)
* Shinshi Doumei Cross (Ushio Amamiya)
Albums
* Mizutamari ni Utsuru Sekai (2000)
* Kuroneko to Tsuki Kikyū o Meguru Bōken (2001)
* Ho (2003)
* sky (2003)
* Rakuen (2004)
* Usotsuki Alice to Kujiragō o Meguru Bōken (2005)
* Darling (2008)
* A Votre Sante!! (2008) (with Kurobara Hozonkai)
Singles/maxis
* Eternal Fantasy 3 Perpetual Blue Maxi Single Collection Part.6 (2000)
* Merry Merrily (Yamato Nadeshiko) (2001)
* Love Destiny (May 16, 2001)
* Kirari Takaramono (February 28, 2002)
* All My Love (July 24, 2002)
* Kokoro Harete Yo mo Akete (February 4, 2004)
* Scramble (Yui Horie with UNSCANDAL) (October 27, 2004)
* Hikari (Inukami! Opening Theme) (May 24, 2006)
* Days (Includes theme songs for Nagasarete Airantō) (May 2, 2007) [3]
* Koisuru Tenkizu (Including the ending theme for the second half of Nagasarete Airantō) (August 17, 2007)
* Vanilla Salt (Toradora! Ending 1) (October 22, 2008)
* Silky Heart (Toradora! Opening 2) (January 28, 2009)
DVDs
* CLIPS 1 — includes a number of live action promotional videos, including:
o Sakura - her first promotional video, for her first album, (Mizutamari ni Utsuru Sekai)
o Love Destiny - parts of the live action video can be seen in the Sister Princess opening animation
o Kirari Takaramono - the song is the opening theme for Love Hina Again
o All My Love - the song is the opening theme for Earth Defender Mao-chan
o Kokoro Harete Yo mo Akete - the song is the ending theme for Jubei-chan 2
* LIVE DVD 2006 - The Adventure Over Yui Horie
* LIVE DVD 2007 - Horie Yui Christmas Live
Notable songs
* Love Destiny - Sister Princess, Opening
* Mainichi ga O-tenki (lit. Good Weather Every Day) - Love Hina, Insert
* Egao No Mirai E (lit. Towards A Future Of Smiles) - Love Hina
* Kirari Takaramono (lit. Glittering Treasures) - Love Hina Again, Opening
* Be For You, Be For Me - Love Hina Again, Ending
* Yakusoku (lit. Promise) - Love Hina, Insert
* Happy Happy Rice Shower - Love Hina
* Tsubasa (lit. Wings) - Sister Princess Ending
* Girlish - Sister Princess, Sakuya's Theme
* Destiny - Kikaider, Ending
* Feel my feeling - School Rumble, Eri's Theme
* RAMUNE iro no natsu - Love Hina
* Kokoro Harete Yo mo Akete - Jubei-chan 2
* IN YOU - Shaman King, Image Song
* ALL MY LOVE - Ground Defense Force! Mao-chan, Opening
* IT's MY STYLE - Earth Defender Mao-chan, Ending
* Soyokaze no Harmony - From D.C.- Da Capo (Kotori Shirakawa's Song)
* Sono Saki no Justice - Shaman King, Iron Maiden Jeanne Song
* Aosusuki - Samurai Deeper Kyo, Image Song
* Scramble - School Rumble, Opening
* Pacem in Terris - Shaman King, Iron Maiden Jeanne S. F. O. V Song
* Aki Uta ~Sarara~ - Bottle Fairy, Ending (Episodes 7-9)
* Anata ga Suki (I like You) - Ultra Maniac, Ayu Tateishi image song
* Hikari - Inukami!, Opening
* Days - Nagasarete Airantou first opening
* Say Cheese! - Nagasarete Airantō first ending
* Koisuru Tenkizu - Nagasarete Airantō 2nd ending
* Poetry Love - Kogado game Heartful Memories
* Nano Desu - Higurashi no Naku Koro ni Kai Character CD