Koki Anzai is a 31-year-old professional football player from JPN. He currently plays for Kashima Antlers, wearing the number 2 shirt. He plays primarily as a Defender. He stands at 172cm tall and weighs 64kg. His preferred foot is Right. His current market value is estimated at 900K €.

His most recent move was a Free from Portimonense to Kashima Antlers on 2021-07-20.

Throughout the Japanese J1 League 2025, Koki Anzai featured in 19 matches, averaging 1.6 tackles, 0.6 interceptions, and 2.8 clearances per game, while blocking 0 shots per game.