Biebelsheim lies in Rhenish Hesse just east of the river Nahe some 6 km northeast of Bad Kreuznach, some 11 km southsoutheast of Bingen am Rhein and 28 km southwest of Mainz.
Clockwise from the north, Biebelsheim's neighbours are the municipality of Gensingen, the municipality of Welgesheim, the municipality of Zotzenheim, the municipality of Pfaffen-Schwabenheim and the town of Bad Kreuznach.