Stefán Árni Geirsson is a 26-year-old professional football player from ISL. He plays primarily as a Defender. His preferred foot is Right.

Throughout the Iceland Besta-deild karla 2025, Stefán Árni Geirsson featured in 2 matches, averaging 0 tackles, 0 interceptions, and 0.5 clearances per game, while blocking 0 shots per game.