Satoshi Yamaguchi (山口 智, Yamaguchi Satoshi, born April 17, 1978) is a Japanese professional football manager and former player who is the manager of J1 League club Shonan Bellmare.

It was the youngest player to play for J1 League until Yuki Abe made new record in 1998.

He moved to Kyoto Sanga FC in 2015 and retired end of 2015 season.

In June 1997, Yamaguchi was selected Japan U-20 national team for 1997 World Youth Championship.

[3] On 1 September 2021, Yamaguchi was appointed as manager of J1 club, Shonan Bellmare following the retirement of Bin Ukishima for during 2021 season.