Jason Dadi Svanthórsson is a professional footballer from ISL and is currently 27 years old. He is on the books of Grimsby Town and wears shirt number 11. His main role on the pitch is Forward. His stronger foot is Right. His estimated market valuation currently stands at 100K €.

His latest transfer saw him join Grimsby Town from Breidablik via Free on 2024-07-08.

During the English Football League Two 2025-2026 campaign, Jason Dadi Svanthórsson made 6 appearances, scoring 0 goals and adding 0 assists. He averaged 0 goals per match from 3 shots, with 0 on target.