PES

PES may refer to:

• Packetized elementary stream, part of the MPEG communication protocol
• Party of European Socialists, a pan-European political party
• Passenger Environment Survey, quality-control system for transit systems
• Payment for ecosystem services
• People's Education Society Institute of Technology
• Performance Enhancement Specialist, Issued by National Academy of Sports Medicine
• Pes anserine bursitis, inflammatory of the inner knee at the bursa of the pes anserinus
• PES (director), film director and animator
• Photoemission spectroscopy, a measurement of a substance's binding energy using the photoelectric effect
• Polyester, an artificially produced organic chemical that is spun and woven to make fabric
• Polyethersulfone, a thermoplastic polymer
• Potential energy surface, in physics and chemistry
• Power Engineering Society, the oldest society of the Institute of Electrical and Electronics Engineers (IEEE) focused on the scientific and engineering knowledge about electric power and energy
• Premier Election Solutions, formerly Diebold Election Systems
• Price elasticity of supply in Economics
• Pro Evolution Soccer (series), a multi-platform video game
• Programmed electrical stimulation, a type of electrophysiologic study
• Providence Elementary School, an elementary school in Chesterfield County, VA
• Proposed Encryption Standard
• Psychiatric Emergency Services
• PULHHEEMS, a system of grading physical and mental fitness used by Britain's armed forces

Pes may refer to:

• Pes (zoology), Latin for "foot" (body part), thus used in anatomy to mean "foot" (or analogous body part)
• Pes (unit), a Roman unit of length measurement roughly corresponding with a foot
• Pes (village), a former urban-type settlement in Novgorod Oblast, Russia; since 1999—a village