Ryuji Kokubu is a 25-year-old professional football player from JPN. He plays primarily as a Midfield. He stands at 172cm tall and weighs 64kg. His preferred foot is Right.

His most recent move was a from Matsumoto Yamaga FC to Free player on 2026-02-01.

Across 25 appearances in the Japanese J3 League 2025, Ryuji Kokubu registered 0 goals and 0 assists, while completing 5 key passes out of 67 total passes with a passing accuracy of 1.9.