Hiroshi Iuchi

is a Japanese director, graphic designer, and composer who is widely known for his work at the game development studio Treasure.

He started his career by joining Konami in 1989 where he worked on a number of arcade titles. In 1992, Iuchi and a number of Konami employees including Masato Maegawa and Norio Hanzawa splintered away from the company to form Treasure. His first game for the new company was the critically acclaimed Gunstar Heroes.

In 1995, Iuchi left Treasure to join Time Warner Interactive. He was re-hired by Treasure in 1997 where he worked on his first project as a director, Radiant Silvergun.

Despite a new string of successes including Ikaruga and Gradius V, Iuchi once again left Treasure in 2006. He resurfaced in 2007 as a freelance graphic designer and has since worked with Treasure on the Xbox Live Arcade port of Ikaruga and Bleach: Versus Crusade for the Wii. In 2012 he directed Kokuga for G.Rev. As of 2013 he works at M2.

Works Quarth (1989) - Graphics Aliens (1990) - 2nd Player and Demonstration Graphics Escape Kids (1991) - Character Graphics The Simpsons (1991) - 1st Boss and Character Display Graphics Bucky O'Hare (1992) - Character, Effects, and Demonstration Graphics Gunstar Heroes (1993) - All Background Graphics and Title Logo Alien Soldier (1995) - Stages 1–9 Background Graphics Light Crusader (1995) - Background, Effects, and 70% Character Graphics, 2 Pieces of Music Shinrei Jusatsushi Taroumaru (1997) - 70% Background Graphics, 50% Boss Graphics, Other Radiant Silvergun (1998) - Director, Planner, All Background Graphics, Effects Sin and Punishment: Hoshi no Keishōsha (2000) - 90% Background Graphics, Effects, Other Ikaruga (2001) - Director, Planner, Prototype Production, 70% Background Graphics, Effects, All Music Gradius V (2004) - Director, Planner, 60% Background Graphics, Effects Ikaruga XBLA (2008) - Graphic Data Conversion, Additional Graphics Bleach: Versus Crusade (2008) - 90% Background Graphics, Lighting Strania (2011) - 10% Background Graphics Kokuga (2012) - Director, Planner, 80% Background Graphics, Effects 3D After Burner II (2013) - Planner, Graphic Designer 3D Thunder Blade (2013) - Graphic Designer The Legend of Dark Witch 3: Wisdom and Lunacy (2017) - Director Night Striker Gear (2025) - Director, Planner, Map & Level Designer, Graphic Designer & Modeler Ubusuna (canceled) - Director, Music