Nagano Kouichi (born December 12, 1966) is a voice actor from Sakura, Chiba, Japan. He debuted in 1990.

Kouichi is famous for voicing Yuichiro Hikari in Rockman EXE. Another famous role includes that of Ryokan Kurita in Eyeshield 21.

He was formerly part of 81 Produce and is currently freelance.