Taishin Kohiruimaki (小比類巻 太信, Kohiruimaki Taishin, born November 7, 1977) is a Japanese welterweight kickboxer and karateka competing in K-1 MAX.

He started learning karate at the branch of Kyokushin kaikan, and then he started kickboxing at Active J, a kickboxing gym in Tokyo.

On May 30, 1997, he fought and won against Masato (a future K-1 tournament champion.)

On October 26, he fought against Tatsuya Suzuki who was the current champion of AJKF at welterweight, and he won by TKO at 2R.

On October 3, 1999, Kohiruimaki was recruited by K-1, and fought against Kotetsu Boku at the special match of K-1 World GP '99 Opening.