PBE

PBE may refer to:

• Template:Section link
• Population balance equation
• Potential buoyant energy or convective available potential energy (CAPE)
• President Biden Expressway, a short freeway in Scranton, Pennsylvania
• Programming by example, in computing
• Password-based encryption
• Protective Breathing Equipment, smoke hoods on aircraft
• Phi Beta Epsilon, an MIT fraternity
• Prosopography of the Byzantine Empire