| Acronym | Definition |
|---|
| ISP➣Internet Service Provider (most common) |
| ISP➣In-System Programmable |
| ISP➣International Studies and Programs |
| ISP➣International Specialty Products |
| ISP➣Independent Study Project |
| ISP➣Indiana State Police |
| ISP➣Information Service Provider |
| ISP➣Illinois State Police |
| ISP➣Specific Impulse |
| ISP➣Institute of Sales Promotion |
| ISP➣Individual Study Plan (various schools) |
| ISP➣Idaho State Police |
| ISP➣Institute for System Programming (Russia) |
| ISP➣Ironwood State Prison (California) |
| ISP➣Industrial Security Professional (certification; National Classification Management Society) |
| ISP➣Institut Scientifique de Santé Publique (Belgium) |
| ISP➣International Security Program |
| ISP➣Individual Service Plan |
| ISP➣Instituto Superior Politecnico (São Tomé and Príncipe university) |
| ISP➣Intelligent Signal Processing |
| ISP➣Information Systems Professional (Canadian Information Processing Society) |
| ISP➣Independent Study Program |
| ISP➣Invitation to Submit Proposals |
| ISP➣Independent Service Provider |
| ISP➣Instituto de Salud Publica (Chile equivalent to US FDA) |
| ISP➣Integrating Sphere (optical engineering) |
| ISP➣Information Security and Privacy (International Conference) |
| ISP➣Internet Solution Provider |
| ISP➣International School of Paris (Paris, France) |
| ISP➣in System Programming |
| ISP➣Internet Service Provider |
| ISP➣Information Services Processor |
| ISP➣Internet Sign-up |
| ISP➣Integrated Standard Processor |
| ISP➣Intermediate Switching Point |
| ISP➣Interactive Serial Programmer |
| ISP➣Iowa State Penitentiary |
| ISP➣Image Signal Processor |
| ISP➣Initial Screening Process (various locations) |
| ISP➣Interface Segregation Principle |
| ISP➣International Standardized Profile |
| ISP➣Information Systems Plan |
| ISP➣In-State Private (schools; various locations) |
| ISP➣Inside Plant (telephone) |
| ISP➣Institutional Strengthening Project (various locations) |
| ISP➣Intensive Supervision Probation |
| ISP➣International Software Products (various locations) |
| ISP➣Infrared Spectrophotometer |
| ISP➣Ikebukuro Shopping Park (Tokyo, Japan) |
| ISP➣International Security Policy |
| ISP➣Injury Surveillance Program (Massachusetts Department of Public Health) |
| ISP➣In-System Programmability |
| ISP➣International Scholars Program (various schools) |
| ISP➣Instruction Set Processor |
| ISP➣Intensive Study Program (various organizations) |
| ISP➣Information Support Plan (US DoD) |
| ISP➣Institute of Store Planners |
| ISP➣Innovative Safety Products (Harrisburg, NC) |
| ISP➣Infrastructure Service Provider |
| ISP➣Invisibl Skratch Piklz (scratch DJs) |
| ISP➣Institut Supérieur Pédagogique (French) |
| ISP➣Information Storage Products (computer storage) |
| ISP➣Information Sharing Protocol (NASA TCP/IP protocol used to distribute telemetry) |
| ISP➣Interdisciplinary Science Program (various universities) |
| ISP➣Individual Student Planning (various locations) |
| ISP➣International Scientific Projects |
| ISP➣Intercultural Studies Program (various schools) |
| ISP➣Individualized Study Program (various schools) |
| ISP➣Individual Service Provider |
| ISP➣Imbalance Settlement Period (electricity balancing) |
| ISP➣Institute of Semiconductor Physics (National Academy of Sciences of Ukraine) |
| ISP➣Integrated Support Plan |
| ISP➣Information Strategy Plan |
| ISP➣Intensive Supervised Probation (form of probation in corrections/criminal justice) |
| ISP➣Industry Specialization Program (IRS) |
| ISP➣Interrupt Status Port |
| ISP➣International Settlements Policy |
| ISP➣Incentive Special Pay (US DoD) |
| ISP➣Income Security Program (Canada) |
| ISP➣Incorporated Society of Planters |
| ISP➣International Service Program |
| ISP➣Indigenous Sport Program (Australia) |
| ISP➣Interamerican Society of Psychology |
| ISP➣Information Strategic Plan |
| ISP➣In Store Processor |
| ISP➣Initial Science Plan |
| ISP➣Integrated Survey Program |
| ISP➣Integrated System Peripheral |
| ISP➣Implementation Support Plan |
| ISP➣International Standard Problem |
| ISP➣Intelligence Support Plan |
| ISP➣Image Synthesis Processor |
| ISP➣Initial Specific Impulse |
| ISP➣Ideal Sales Process |
| ISP➣Institute for Shock Physics (Washington State University) |
| ISP➣International Society of Photogrammetry |
| ISP➣Institutional Strategy Paper |
| ISP➣Invisible Street Photography (est. 2018) |
| ISP➣Israel Seed Partners |
| ISP➣Incentive Savings Plan |
| ISP➣International Speed Post (Pakistan) |
| ISP➣Initial Science Program (IAI) |
| ISP➣Intermediate Service Part |
| ISP➣Ishikawa Science Park (Ishikawa, Japan) |
| ISP➣Interactive String Processor |
| ISP➣Inscribed Signed Photo (autograph collectors) |
| ISP➣Infirmiers de Secteur Psychiatrique |
| ISP➣Islip, NY, USA - Long Island-Macarthur Airport (Airport Code) |
| ISP➣Index of Social Position |
| ISP➣Inter-American Strategy for Participation |
| ISP➣International Signaling Point |
| ISP➣Inner Strength Points (Palladium Games) |
| ISP➣Independent Solutions Provider |
| ISP➣Initial State Probability |
| ISP➣International Service Personnel |
| ISP➣Isolator Surge Protector |
| ISP➣Internet Selective Polling |
| ISP➣Infinity Science Press (Hingham, MA) |
| ISP➣ISDN Security Program |
| ISP➣Interactive Session Protocol |
| ISP➣Inverse Source Problem |
| ISP➣Industrial Solid Propulsion Inc |
| ISP➣Installation Strategic Plan (US Army) |
| ISP➣Installation Security Plan |
| ISP➣Initial Spare Parts |
| ISP➣Identification Safety Point |
| ISP➣Indexed Sequential Processor |
| ISP➣Input Signal Processing |
| ISP➣Integrated Services Panel |
| ISP➣Involuntary Separation Plan (HR term for layoff) |
| ISP➣Irish Society of Periodontology |
| ISP➣Interim Support Program |
| ISP➣Interleaving Scenario Pattern |
| ISP➣Interim Support Period |
| ISP➣ISDN Signal Processor |
| ISP➣Italian Studies Program (various schools) |
| ISP➣Intelligence Situation Report |
| ISP➣Insensitive Munitions Policy |
| ISP➣Integrated Systems Processor (OH-58D Helicopter) |
| ISP➣Interoperability Support Program |
| ISP➣IISCO (Indian Iron & Steel Company) Steel Plant (Burnpur, India) |
| ISP➣International Society of Postmasters |
| ISP➣Interlock Status Panel |
