Hlynur Freyr Karlsson is a 22-year-old professional football player from ISL. He currently plays for Brommapojkarna, wearing the number 2 shirt. At the international level, he represents Iceland U19. He plays primarily as a Defender. His preferred foot is Right. His current market value is estimated at 350K €.

His most recent move was a Free from Haugesund to Brommapojkarna on 2024-07-01. The reported fee was 0.085M €.

Throughout the Sweden Allsvenskan 2025, Hlynur Freyr Karlsson featured in 23 matches, averaging 0.2 tackles, 0.3 interceptions, and 3.4 clearances per game, while blocking 0 shots per game.