Katsuhiko Sumii

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Katsuhiko Sumii 角居勝彦
Occupation	Trainer (Retired)
Born	(1964-03-28) 28 March 1964 (age 60) Kanazawa, Ishikawa Prefecture, Japan
Nationality	Japanese
Career wins	793
Racing awards
JRA Award for Best Trainer (races won) (2011-13) JRA Award for Best Trainer (money earned) (2005, 2008, 2010, 2013, 2014) JRA Award for Best trainer (training technique) (2014)

Katsuhiko Sumii (角居 勝彦, Sumii Katsuhiko) (born 28 March 1964, Kanazawa, Ishikawa) is a Japanese horse trainer. He trained the first and second placing horses in the 2006 Melbourne Cup, Delta Blues and Pop Rock.^[1] Other notable horses Sumii has trained include Kane Hekili, Vodka, Victoire Pisa, and Epiphaneia.

Sumii retired in February 2021 to succeed his mother's work as an active member of the Tenrikyo.^[2][3][4]