Wataru Yoshikawa (?? ???, Yoshikawa Wataru, born September 26, 1968 in Tokyo) is a Japanese motorcycle rider.
Yoshikawa won the All Japan Superbike Championship in 1994 and 1999.
He also participated in the World Superbike Championship, finishing 9th in the 1996 season.
In 2003 Yoshikawa finished second at the Suzuka 8 Hours, partnering Shinichi Nakatomi on a Yamaha YZF-R1.Yoshikawa is a test rider for the Yamaha factory, and helped develop the Yamaha YZR-M1.
On June 23, 2010 it was announced that Yoshikawa will replace the injured Valentino Rossi in the MotoGP Fiat Yamaha factory works team, until Rossi is again able to race.Wataru Yoshikawa was the team manager of Yamaha's All Japan Road Race Championship factory team at the 39th "Coca-Cola Zero" Suzuka 8 Hours Endurance Road Race held during July 28 to July 31, 2016 at the Suzuka Circuit in Ino, Suzuka City, Mie Prefecture, Japan.