Naritaka Nishimura (西村 成孝, Nishimura Naritaka) is a fictional character in Kunio-kun series. His first appearance was in Downtown Nekketsu Monogatari and he is the No. 1 man of Hakutaka Industries High School. Despite his plump size and wearing large glasses, Nishimura is a formidable fighter.
Nishimura is a recurring character in the Kunio-kun series, making appearances in Downtown Nekketsu Kōshinkyoku: Soreyuke Daiundōkai and 'Bikkuri Nekketsu Shinkiroku: Harukanaru Kin Medal as a member of the Rengou Interschool Union's Athletics team among Gouda and Godai. He also appears as the second boss in Kunio no Oden. He also appeared on the cover of the manga Ore no Otoko Da! Kunio-kun, though he never appeared in the manga itself.
- In River City Ransom, Nishimura was called Rocko.
- In Crash 'n the Boys: Street Challenge, Nishimura was name Lawrence "Baldy" Baldwin IV, a member of Team Jefferson High School.