Sigfus Fannar Gunnarsson is a 24-year-old professional football player from ISL. He currently plays for Thor Akureyri, wearing the number 37 shirt. He plays primarily as a Forward. His current market value is estimated at 150K €.

His most recent move was a Loan from Dalvík/Reynir to Thor Akureyri on 2024-02-02.

In the Iceland 1. Deild Karla 2025 season, Sigfus Fannar Gunnarsson scored 14 goals and provided 2 assists across 21 appearances, averaging 0.7 goals per game with 0 shots attempted and 0 on target.