Bischbrunn is a municipality located in the Main-Spessart district within the Regierungsbezirk of Lower Franconia (Unterfranken) in the German state of Bavaria. It serves as a member of the Verwaltungsgemeinschaft of Marktheidenfeld.
As of 2013, the municipality had a population of approximately 1,800 inhabitants. It is situated in the southern part of Germany within the Bavarian region.