Kōki Machida (町田 浩樹, Machida Kōki, born 25 August 1997) is a Japanese professional footballer who plays as a centre-back for Belgian Pro League club Union SG and the Japan national team.

[2] Machida joined J1 League club Kashima Antlers in 2016.

[3][4] Machida joined the Belgian Pro League club, Union Saint-Gilloise on loan in January 2022, before signing a permanent contract a year later until 2026.

[5] On 9 May 2024, he scored the only goal against Antwerp in the 2024 Belgian Cup final, securing his club's first title in competition after 110 years.

[6] Union SG This biographical article related to a Japanese association football defender born in the 1990s is a stub.