- ZBL stands for Zero Bus Latency (data management)
- ZBL stands for Z-Beamlet Laser
- ZBL stands for Zinc-Binding Ligand (endocrinology)
- ZBL stands for Zero Break Line (golf)
- ZBL stands for Zablocki Branch Library (Milwaukee, WI)
- ZBL stands for Zero-Background Linkers (genetics)
ZBL