| TPN | Total parenteral nutrition | 全肠外营养 |
| TPN | Total Protein Nutrition | 总蛋白质营养 |
| TPN | Topic Page Number | 主题页码 |
| TPN | Test Point Number | 测试点编号 |
| TPN | Trading Process Network | 交易流程网络 |
| TPN | The Project Network | 项目网络 |
| TPN | thalamic projection neurons | 丘脑投射神经元 |
| TPN | triphosphopyridine nucleotide | 三磷酸吡啶核苷酸 |
| TPN | The Poetry Nest | 诗巢 |
| TPN | Tiputini, Ecuador | 厄瓜多尔蒂普蒂尼 |
| TPN | Time Petri Net | 时间Petri网 |
| TPN | Timed Petri Net | 定时Petri网 |
| TPN | Totally Partially Not | 完全部分没有 |
| TPN | The Perspectives Network | 透视网络 |
| TPN | TownPages Net Com, P. L. C. | TownPages网络公司。 |
| TPN | Tactical Packet Network | 战术分组网络 |
| TPN | Transaction Processing Network | 交易处理网络 |
| TPN | The Pixelgeek Network (website) | Pixelgeek网络（网站） |
| TPN | Trading Partner Number | 交易伙伴编号 |
| TPN | Trading Partner Network | 贸易伙伴网络 |
| TPN | True Part Number | 真实零件号 |
| TPN | Tatrzanski Park Narodowy (Polish: Tatry Mountains National Park) | 塔尔赞斯基公园Narodowy（波兰语：Tatry Mountains National Park） |
| TPN | True Proportional Navigation | 真正的比例导航 |
| TPN | Three Phase and Neutral | 三相和中性 |