Geiselbach is a community in the Aschaffenburg district in the Regierungsbezirk of Lower Franconia (Unterfranken) in Bavaria, Germany.

In 1269, Geiselbach had its first documentary mention in a purchase agreement between the Seligenstadt Monastery and the Archbishopric of Mainz, between Abbot Conrad and Archbishop Werner.

After 1269, the Seligenstadt Monastery relinquished its rights in Geiselbach to the noble families of Büdingen, Hanau and Rannenberg and to the knight Erpho von Orb.

Even before the turn of the century, in 1290, Sir Erpho von Orb was once again named the Vogt in Geiselbach.

The community’s arms might be described thus: Gules an uppercase A with crossbar on top in fess and cross stroke in chevron inverted Or among three mullets of six argent.