Ryosei Kato (加藤 凌聖, born 19 August 1997)[1] is a field hockey player from Japan, who plays as a forward.

[3] Since his debut, Kato has medalled with the national team on numerous occasions.

He won bronze at the FIH Series Finals in Bhubaneswar.

[4] In 2023, Ooka was named to the national team for the FIH World Cup in Bhubaneswar and Rourkela, as well as the Asian Games in Hangzhou.

This biographical article relating to a Japanese field hockey figure is a stub.