| IPN | industrial promissory note | 工业汇票 |
| IPN | Internet Personal Number | 互联网个人号码 |
| IPN | Instant Private Network | 瞬时专用网络 |
| IPN | Inter-Personal Notification | 人际通知 |
| IPN | Interplanetary Internet (JPL) | 行星间互联网（JPL） |
| IPN | Initial Physical Notification (UK) | 初始物理通知（英国） |
| IPN | Intelligence Processing Network | 情报处理网络 |
| IPN | Interplanetary Network | 行星间网络 |
| IPN | Infectious Pancreatic Necrosis | 传染性胰腺坏死 |
| IPN | Interpenetrating Polymer Networks | 互穿聚合物网络 |
| IPN | infectious pancreatic necrosis virus | 传染性胰腺坏死病毒 |
| IPN | Impulse Noise | 脉冲噪声 |
| IPN | Ideal Proportional Navigation | 理想比例导航 |
| IPN | Iso-Propyl Nitrate | 硝酸异丙酯 |
| IPN | Info Pool Network | 信息池网络 |
| IPN | Internal Point Name (Megasys) | 内部点名称（Megasys） |
| IPN | Instant Payment Notification (PayPal) | 即时付款通知（PayPal） |
| IPN | Iowa Prairie Network | 爱荷华州草原网络 |
| IPN | Integrated Packet Network | 集成分组网络 |
| IPN | I'm Posting Naked | 我贴赤身露体 |
| IPN | Independent Photography Network | 独立摄影网络 |
| IPN | Idaho Physicians Network | 爱达荷州医生网络 |
| IPN | Instituto Politecnico Nacional (MÉxico) | Instituto Politecnico Nacional (MÉxico) |
| IPN | Instituto PolitÉcnico Nacional | Instituto PolitÉcnico Nacional |
| IPN | Interpenetrating Polymer Network | 互穿聚合物网络 |
| IPN | isoprophyl nitrate | 硝酸异丙酯 |
| IPN | infantile polyarteritis nodosa | 婴儿结节性多动脉炎 |
| IPN | Institut PÉdagogique National (French: National Pedogogical Institute) | Institut PÉdagogique National (French: National Pedogogical Institute) |
| IPN | Instytut Pamieci Narodowej (Polish: Institute of National Remembrance) | Instytut Pamieci Narodowej（波兰语：国家纪念研究所） |
| IPN | intern progress note | 实习进度记录 |
| IPN | Intelligent Packet Network | 智能分组网络 |
| IPN | isolated pigmented naevi | 孤立性色素痣 |
| IPN | Instant Payment Notification | 即时付款通知 |
| IPN | Intellectual Property Network (IBM) | 知识产权网络（IBM） |
| IPN | Intel Part Number | Intel部件号 |
| IPN | Interplanetary Internet | 星际因特网 |
| IPN | International Programming Network | 国际编程网络 |
| IPN | Insane Props Nation | 疯狂道具国家 |
| IPN | Institut PÉdagogique National | Institut PÉdagogique National |
| IPN | Ipatinga, Minas Gerais, Brazil | 巴西米纳斯吉拉斯州Ipatinga |
| IPN | Instant Purchase Notification | 即时购买通知 |
| IPN | Inter Penetrating Network | 互穿网络 |