Katsuyuki Sumisawa (隅沢 克之, Sumisawa Katsuyuki, November 8, 1961) is a Japanese anime screenwriter. He is from Tokyo.
As a freelance screenwriter, he works on screenplays and series composition based on Pierrot, Toei Animation, and Sunrise.
Known For: Writing
Birthday: 1961-11-08
Place of Birth: 日本, 東京都
Also Known As: 스미사와 카츠유키, すみさわ かつゆき, Katsuyuki Sumizawa