| TP&N | Triple Pole & Neutral 
| Others |
| TPN | Tactical Packet Network
| Others |
| TPN | Tail Finish Panel
| Others |
| TPN | tal Parental Nutrition
| Others |
| TPN | tal Parenteral Nutrition
| Others |
| TPN | Tasks Per Node
| Others |
| TPN | Tech Podcast Network
| Others |
| TPN | Technical and Professional Networks
| Others |
| TPN | Telefon Nummer
| Others |
| TPN | Tesco Product Number
| Others |
| TPN | Test Point Number
| Others |
| TPN | Test Professionals Network
| Others |
| TPN | The Pallet Network
| Others |
| TPN | The People Network
| Others |
| TPN | The Physician Network
| Others |
| TPN | The Podcast Network
| Others |
| TPN | The Poetry Nest
| Others |
| TPN | The Production Network
| Others |
| TPN | The Promised Neverland
| Others |
| TPN | Third Party Notice
| Others |
| TPN | Three Pole + Neutral
| Others |
| TPN | Time Petri Net
| Others |
| TPN | Timor Putra Nasional
| Others |
| TPN | Tiputini, Ecuador
| Others |
| TPN | Tom Petty Nation
| Others |
| TPN | Top Prospect Network
| Others |
| TPN | Topic Page Number
| Others |
| TPN | Total Parenteral Nutrition
| Others |
| TPN | Total Perenteral Nutrition
| Others |
| TPN | Total Protein Nutrition
| Others |
| TPN | Totally Partially Not
| Others |
| TPN | Trading Process Network
| Others |
| TPN | Transaction Program Name
| Others |
| TPN | Transatlantic Policy Network
| Others |
| TPN | triphosphopyridine nucleotide
| Others |
| TPN | Trusted Partner Network
| Others |
| TPN | Tubelet Proposal Network
| Others |