Shimon Kobayashi is a 19-year-old professional football player from JPN. He currently plays for Sanfrecce Hiroshima, wearing the number 45 shirt. At the international level, he represents Japan U17. He plays primarily as a Midfield. He stands at 167cm tall and weighs 57kg. His current market value is estimated at 100K €.

His most recent move was a from Hiroshima Sanfrecce U18 to Sanfrecce Hiroshima on 2026-02-01.

Across 3 appearances in the Japanese J1 League 2025, Shimon Kobayashi registered 0 goals and 0 assists, while completing 0 key passes out of 2 total passes with a passing accuracy of 0.3.