H-Wonder is a Japanese music arranger and composer. He debuted in 1995. In June 1998, he stopped being a solo artist and changed his name to H-Wonder and became a composer. One of his notable collaborations is with Maaya Sakamoto and BoA.

• Subete Konomama Dakishimereba - 24 March 1995
• Ready Steady Go! - 23 August 1995
• Mystic Eyes - 24 April 1996 (Ending theme for the anime series The Vision of Escaflowne)^{[citation needed]}
• Sugita Koi no Ato - 7 November 1996
• Dawn - 21 February 1997
• Chocolate Parfait - 17 December 1997
• Kitto Daijobu - 1 April 1998
• Happy - 30 September 1998 (Only sold in Hokkaido)^{[citation needed]}

• Dawn-bright - 24 April 1997
• Wonder Hero 2: Brand New Atlas - 21 June 1996
• Wonder Hero - 21 April 1995

• On/Off - Arranger
  • "Futatsu no Kodō to Akai Tsumi" (ふたつの鼓動と赤い罪) - Opening for Vampire Knight
• Maaya Sakamoto - Composer and arranger
  • "Loop" (ループ, Rūpu) - Ending for Tsubasa Chronicle
  • "Spica" (スピカ, Supika)
  • "Action!" - Opening theme for Clamp in Wonderland 2
  • "Fuyu Desuka?" (冬ですか?, "Is It Winter?")
  • "That is to Say!" - Follow me Up Album]
• BoA - Composer and arranger for some songs
  • "Every Heart (Minna no Kimochi)" - Arranger
  • "Beside You (Boku o Yobu Koe)" - Arranger
  • "Quincy" - Arranger
  • "Key of Heart" - Composer and arranger
  • "Beautiful Flowers" - Arranger
• Max - Arranger
  • "Spring Rain"
• Kōmi Hirose - Arranger
  • "Velvet"
  • "The Shining Story"
  • "Sayonara"
• Folder5 - Composer and arranger for some songs
  • "Fake" - Composer and arranger
  • "Magical Eyes (Mochi2wondermix)" - Arranger
• Koda Kumi - Arranger for some songs
  • "Cutie Honey" - Opening Theme Song for the anime Re: Cutie Honey
  • "into your heart" - Ending Theme Song for the anime Re: Cutie Honey

• h-wonder at Scoop Music (in Japanese)