Taiyo Yamaguchi is a professional footballer from JPN and is currently 19 years old. At international level, he features for Japan U18. His main role on the pitch is Forward. He measures 183cm in height and weighs 77kg. His stronger foot is Left. His estimated market valuation currently stands at 125K .

His latest transfer saw him join FC Tokyo from Ehime FC via Loan on 2026-06-29.

During the Japanese J1 League 2025 campaign, Taiyo Yamaguchi made 3 appearances, scoring 0 goals and adding 0 assists. He averaged 0 goals per match from 0 shots, with 0 on target.