was a footballer who played for Lille OSC, FC Sochaux, Red Star 93, Rennes, Angers SCO, Stade Français and CO Roubaix-Tourcoing. Born in Hungary, he represented the France national team.
He acquired French nationality by naturalization on 1 October 1937.
After retiring as a player, Simonyi enjoyed a management career with Angers SCO, Red Star 93 and AS Cherbourg.