Shinya Yajima (矢島 慎也, born 18 January 1994) is a Japanese football player who plays for Shimizu S-Pulse in the J1 League.

He immediately became a regular in their midfield and played 37 league games in both of his seasons with Okayama scoring 13 times in total as they finished 11th and 6th in the final standings.

After gaining good top-team experience in J2 it was back to Urawa for 2017 and although he featured more than he had done prior to moving to Okayama, he was still rather a peripheral figure at the Saitama Stadium.

Tsuneyasu Miyamoto replaced Levir Culpi midway through the 2018 season with Gamba facing the real prospect of relegation to J2, he steadied the ship and was appointed as head coach permanently ahead of the 2019 campaign.

Having worked with Yajima previously at Gamba Under-23, he recalled him to first team squad ahead of his first full season in charge at the Panasonic Stadium.