| Acronym | Definition |
|---|
| PTN➣Partition Number |
| PTN➣Perguruan Tinggi Negeri (Indonesian: state university) |
| PTN➣Pleiotrophin |
| PTN➣Parent Teacher Network (various organizations) |
| PTN➣Pro Travel Network |
| PTN➣Polskie Towarzystwo Neurologiczne (Polish: Polish Society of Neurology) |
| PTN➣Public Telephone Network |
| PTN➣Packet Transport Network (computer networking) |
| PTN➣Primary Transit Network (various locations) |
| PTN➣Personal Telephone Number |
| PTN➣Public Telecommunications Network |
| PTN➣Private Telecommunications Network |
| PTN➣Post Tender Negotiation |
| PTN➣Parallels Technology Network |
| PTN➣Paint The Night |
| PTN➣Poker Training Network (Dallas, TX) |
| PTN➣Preservation Trades Network, Inc. |
| PTN➣Private Trading Network |
| PTN➣Pyramidal Tract Neuron |
| PTN➣Part Time Ninja |
| PTN➣Photonic Transport Network (IEEE) |
| PTN➣Personal Telecommunications Number Service |
| PTN➣Product Technical Note |
| PTN➣Person to Notify |
| PTN➣Product Termination Notice |
| PTN➣Product Transfer Notes |
| PTN➣Portable Telephone Number |
| PTN➣Patrolman/Patrolwoman (law enforcement title) |
| PTN➣Problem Tracking Notification |