| Acronym | Definition |
|---|
| PEX | Cross-linked Polyethylene |
| PEX | Peer Exchange |
| PEX | Pci Express |
| PEX | Phigs Extensions to X |
| PEX | Physical Examination |
| PEX | Pinoy Exchange |
| PEX | Peroxisome Biogenesis |
| PEX | Plasma Exchange |
| PEX | Process Excellence |
| PEX | Product Exchange |
| PEX | Pinoy Exchange (online Filipino message board) |
| PEX | Patriot Excalibur |
| PEX | Platform Express Toolstring |
| PEX | Public Excursion (special airline fare) |
| PEX | Pfandbrief-Index |
| PEX | PHIGS Extension to X Windows |
| PEX | Pituitary Extract |
| PEX | Permanent Exclusion |
| PEX | Personal Exercise |
| PEX | Phenix City Express |
| PEX | Perl Exploit Library |
| PEX | Ex-Rights Price (stock) |