Kojiro, a character in Brave Fencer Musashi video game, a fictional personification of Sasaki Kojiro
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Kōjiro Station, a train station in Iwakuni, Yamaguchi Prefecture, Japan
He is best known for his roles as Shusuke Fuji of the fourth generation Seigaku cast in The Prince of Tennis musical series, Tenimyu, and Kirikaze in Fuma no Kojiro, a TV drama.