Hiroshi Ōnogi

is a Japanese screenwriter and novelist focusing on anime productions.

Ōnogi attended Keio University in the same years as Macross character designer Haruhiko Mikimoto and creator Shōji Kawamori, both of whom he would first collaborate with in The Super Dimension Fortress Macross.

Filmography The Super Dimension Fortress Macross (1982), Scenario The Super Dimension Century Orguss (1983), Script Heavy Metal L-Gaim (1984), Script Mobile Suit Zeta Gundam (1985), Script Hey! Bunbuu (1985), Script AD Police (1999), Script (ep 2, 5), Sci-Fi Adviser Earth Girl Arjuna (2001), Series Composition, Script The Daichis - Earth Defence Family (2001), Script (ep 0, 8, 11) The Siamese - First Mission (2001), Scenario Magical Witchland (2001), 2D Script Writer RahXephon (2002), Screenplay (ep 14, 21–22, 26) Heat Guy J (2002), Screenplay (ep 2, 6, 8, 11, 12) Mobile Suit Gundam Seed (2002), Scenario Macross Zero (2002), Script RahXephon: Pluralitas Concentio (2003), Screenplay Submarine 707R (2003), Script Area 88 (2004), Script Mobile Suit Gundam MS IGLOO: The Hidden One Year War (2004), Script Mobile Suit Gundam Seed Destiny (2004), Script Doraemon (2005–present), Script Aquarion (2005), Series Composition, Screenplay (5, 7, 9, 12, 13, 15, 19, 22, 23, 25, 26) Eureka Seven (2005), Script (ep 8, 11, 17, 21, 25, 31, 37, 40, 43, 46) Noein - to your other self (2005), Series Composition, Script (ep 5, 11, 15, 19, 23, 24) Mobile Suit Gundam MS IGLOO: Apocalypse 0079 (2006), Screenplay Kekkaishi (2006), Series Composition Toward the Terra (2007), Script (ep 11, 13, 23, 24) The Skull Man (2007), Script (ep 3, 4, 8, 11) Aquarion: Wings of Betrayal (2007), Series Composition Aquarion (2007), Screenplay Mnemosyne - Mnemosyne no Musume-tachi (2008), Screenplay Birdy the Mighty Decode (2008), Series Composition Xam'd: Lost Memories (2008), Script (ep 22, 23) Hokuto no Ken Raoh Gaiden: Ten no Haoh (2008), Screenplay Shugo Chara!! Doki— (2008), Series Composition Birdy the Mighty Decode:02 (2009), Series Composition Fullmetal Alchemist: Brotherhood (2009), Series Composition Shangri-La (2009), Series Composition Seisen Cerberus: Ryūkoku no Fatalite (2016), Series Composition GeGeGe no Kitarō (2018), Series Composition Phantasy Star Online 2: Episode Oracle (2019), Series Composition How a Realist Hero Rebuilt the Kingdom (2021), Script D_Cide Traumerei the Animation (2021), Script Akuma-kun (2023), Series Composition Blue Archive: The Animation (2024), Series Composition Backstabbed in a Backwater Dungeon (2025), Series Composition