Naritaka Nishimura (西村成孝 Nishimura Naritaka, にしむら なりたか Nishimura Naritaka) is a fictional character in the Kunio-kun series. His first appearance was in Downtown Nekketsu Monogatari and he is the banchō of Hakutaka Industrial 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 Shin Kiroku! Harukanaru Kin Medalas a member of the School Union's Athletics team along with Gōda and Godai. He also appears as the second boss in Kunio no Oden. He also appeared on the cover of the manga Ore wa Otoko Da! Kunio Kun, though he never appeared in the manga itself.
- In River City Ransom, Nishimura is renamed Rocko. He re-appears in the game's sequel: River City Ransom: Underground. At one point in the game the player has to chase him. He mentions both Blade and Moose after he is stopped. His full name in the school's year book is Rocko Baldwin IV, a combination of his two localized names.
- In Crash 'n the Boys: Street Challenge, Nishimura is renamed Lawrence "Baldy" Baldwin IV, a member of the Jefferson High School team.
- Nishimura has a height of 175 cm.
- Nishimura is modeled and named after a former Technōs Japan programmer. This programmer is credited in the Famicom version of Nekketsu Kōkō Dodgeball Bu, which has a character named Naritaka. In the PC fan remake of the game, this character was given Nishimura's face from Downtown Nekketsu Monogatari.