| Acronym | Definition |
|---|
| PPSN➣Parallel Problem Solving from Nature (International Conference) |
| PPSN➣Pp Sequence Number |
| PPSN➣Public Packet Switched Network |
| PPSN➣Personal Public Service Number (Department of Social and Family Affairs; Ireland) |
| PPSN➣Parasitology and Public Health Society of Nigeria |
| PPSN➣Public Packet-Switched Network |
| PPSN➣Present Position |
| PPSN➣Pre-Plant Soil Nitrate Test |
| PPSN➣Public Policy and Service Network (UK) |