Kotaro Himi (born 1954) was a Japanese yakuza criminal affiliated with the Dojima-gumi who guarded the family headquarters in Tokyo, Japan during the 1980s. On the night of 10 December 1988, he attempted to stop Kazuma Kiryu from fighting his way to the boss, Sohei Dojima, but he and dozens of other yakuza were beaten down in the process.