Jon Mersinaj is a 28-year-old professional football player from ALB. He currently plays for NK Osijek, wearing the number 5 shirt. He plays primarily as a Defender. His preferred foot is Right. His current market value is estimated at 400K .

His most recent move was a Free from NK Lokomotiva Zagreb to NK Osijek on 2025-02-14. The reported fee was 0.2M €.

Throughout the Croatian Football League 2025-2026, Jon Mersinaj featured in 13 matches, averaging 1 tackles, 0.2 interceptions, and 2.5 clearances per game, while blocking 0.1 shots per game.