Kosei Suwama is a 24-year-old professional football player from JPN. He currently plays for Yokohama F. Marinos, wearing the number 33 shirt. He plays primarily as a Defender. He stands at 184cm tall and weighs 79kg. His preferred foot is Right. His current market value is estimated at 300K €.

His most recent move was a from Tsukuba University to Yokohama F. Marinos on 2025-03-05.

Throughout the Japanese J1 League 2026, Kosei Suwama featured in 3 matches, averaging 0 tackles, 0 interceptions, and 0 clearances per game, while blocking 0 shots per game.