IPN

IPN may refer to:

• Intuit PaymentNetwork
• Independent Practitioners Network
• Infectious pancreatic necrosis, disease in fishes
• Instant Private Network, type of VPN
• Instytut Pamięci Narodowej (Institute of National Remembrance), a Polish historical research institute
• Instituto Pedro Nunes
• Instituto Politécnico Nacional (National Polytechnic Institute), Mexican university
• International Printers Network
• International Policy Network
• International Polio Network
• Interpenetrating polymer network, form of chemical copolymer
• Interplanetary Internet
• InterPlanetary Network, a group of spacecraft equipped with gamma-ray burst detectors
• Instant Payment Notification
• Isopropyl nitrate, a liquid monopropellant