Sumiko Hatakeyama (畠山 寿美子, Hatakeyama Sumiko) is a CG artist and one of Koei's character designers.
Works with Koei
- Kessen III
- Dynasty Warriors 5~8
- Samurai Warriors 2 - CG designer
- Romance of the Three Kingdoms XI - graphic designer
- Warriors Orochi
- Bladestorm: The Hundred Years' War
- Fist of the North Star: Ken's Rage series
- Pokémon Conquest
- One Piece: Pirate Warriors 2 - character graphic designer
- Hyrule Warriors
- Warriors All-Stars