| Acronym | Definition |
|---|
| PCEN➣Podkarpackie Centrum Edukacji Nauczycieli (Polish: Subcarpathia Teacher Education Center) |
| PCEN➣Postel Center for Experimental Networking (est. 2000; California) |
| PCEN➣Pupils with Compensatory Education Needs |
| PCEN➣Jonathan B. Postel Center for Experimental Networking |
| PCEN➣Postgraduate Certificate in Engineering (University of Southern Queensland; Australia) |