ISI
ISI commonly refers to Pakistan’s Inter‑Services Intelligence agency, but also to research institutions like the Information Sciences Institute and the Indian Statistical Institute, and to the signal distortion known as inter‑symbol interference.
Medical
Inter-Stimulus Interval
Insulin Sensitivity Index
Insomnia Severity Index
Insomnia Screening Index
International Sensitivity Index
Miscellaneous
Intensive Supplemental Instruction
Iron Sharpening Iron
Institut Seni Indonesia
International Super Intelligence
Inayan Systems International
Import Substitution Industrialisation
Initial State Interactionand
Isi Stands For Insanely
Iron Sharpens Iron
Indeterminate Short Intemode
Image Space Incorporated
International Symposium of Information
Integrated Strategic Innovation
ISI stands for Iron
ISI stands for Inter
Community
Governmental
Instrument/Spacecraft Interface
Indian Standards Institution
Indian Standard Institute
Intercollegiate Studies Institute
Inter-Services Intelligence
Indian Standards Institute
Inter-Service Intelligence
Import Substitution Industrialization
Initial System Installation
Instrumentation Support Instruction
Inter Systems Intelligence (Pakistan)
Institute For Sustainable Infrastructure
International Statistical Institute
Information Security Institute
Academic & Science
International Students Incorporated
Information Sciences Institute
Independent Science Investigation
Initial State Interaction
International Student Interexchange
International Student Introduction
Indian Statistical Institute
Inter-Symbol Interference
In-Situ Interferometer
Regional
Computing
Internet
Business
Information Services International
Integrity, Smartness, and Intellect
Illinois Swimming, Incorporated
Indians Service India
Innovative Systems, Inc.
I Sell International
Installer Supply International
Internet Securities Inc
Institutional Survivability Indicator
International Sports Images
Infortext Systems, Incorporated