The meaning of the Acronym PES is...

PES is

• Pissy Ending Syndrome

More Meanings For PES:

• Photo-Electron Spectroscopy
• Petroleum Engineering Services
• Percy Engineering Services
• Post Enumeration Survey
• Performance Evaluation System
• Price Elasticity of Supply
• Package Evaluation and Selection
• Pro Evolution Soccer
• Program Editor work space file (WordPerfect Library)
• Programmable Electronic System
• Packetized Elementary Stream
• Process Engineering Suite
• Proposed Encryption Standard
• Personal Email Solution
• Post Ejection Sequencer

PES is also in:

• Electronics
• File Extensions
• Firms
• General
• NASA
• Networking
• Security
• Software
• Sports