Tetsuya Koishi (小石 哲也, Koishi Tetsuya, born September 21, 1990) is a Japanese football player.
[1] He plays for Vonds Ichihara.
Tetsuya Koishi played for J3 League club; Gainare Tottori from 2014 to 2015.
In 2016, he moved to Vonds Ichihara.
This biographical article related to a Japanese association football midfielder born in the 1990s is a stub.