Stefan Feliks Bialas (born 8 December 1948) is a Polish former professional football manager and player.

He played for several Polish clubs, including Ruch Chorzów, Legia Warsaw and Śląsk Wrocław.

He then moved to France and played for Gueugnon, Besançon, US Nœux-les-Mines, Paris FC and Creil.

He later began a coaching career, first as assistant manager of Paris FC,[1] then with Compiègne, Creil, Beauvais,[2] Club Olympique des Transports and Stade Tunisien,[3] and working briefly as a coach for Cracovia in 2006.

On 14 March 2010 he was officially named as the head coach of Legia Warsaw, where he was replaced by Maciej Skorża on 1 June 2010.