Taisei Ishii is a professional footballer from JPN and is currently 22 years old. His main role on the pitch is Defender. He measures 189cm in height and weighs 73kg. His stronger foot is Left. His estimated market valuation currently stands at 50K .

His latest transfer saw him join FC Tiamo Hirakata from Nara Club via Loan on 2026-06-29.

Across the J2/J3 100 Year Vision League 2026, Taisei Ishii appeared in 4 matches and averaged 2.5 tackles, 1.8 interceptions, 5 clearances, and 0.3 blocked shots per game.