Jason Dadi Svanthórsson is a 27-year-old professional football player from ISL. He currently plays for Grimsby Town, wearing the number 11 shirt. He plays primarily as a Forward. His current market value is estimated at 125K €.

His most recent move was a Free from Breidablik to Grimsby Town on 2024-07-09.

In the English Football League Two 2025-2026 season, Jason Dadi Svanthórsson scored 0 goals and provided 0 assists across 6 appearances, averaging 0 goals per game with 3 shots attempted and 0 on target.