Jonas Seim is a 20-year-old professional football player from NOR. He currently plays for Start Kristiansand, wearing the number 18 shirt. He plays primarily as a Forward. His current market value is estimated at 50K €.

His most recent move was a Loan from Flekkeroy IL to Start Kristiansand on 2025-12-31.

In the Norwegian 2.Divisjon 2025 season, Jonas Seim scored 0 goals and provided 0 assists across 14 appearances, averaging 0 goals per game with 0 shots attempted and 0 on target.