Kotaro Yamahara is a 26-year-old professional football player from JPN. He currently plays for Ehime FC, wearing the number 3 shirt. He plays primarily as a Defender. He stands at 182cm tall and weighs 75kg. His preferred foot is Right. His current market value is estimated at 200K €.

His most recent move was a Free from Fujieda MYFC to Ehime FC on 2025-01-20.

Throughout the J2/J3 100 Year Vision League 2026, Kotaro Yamahara featured in 2 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.