English abbreviations from isi to isis
- ISI (Indian Standards Institute, former name of the Bureau of Indian Standards)
- ISIA (Improving America's Schools Act)
- ISIC (International Student Identification Card)
- ISIP (Industrial Scholar Interns Program)
- ISIPS (International Sharps Injury Prevention Society)
- ISIS (Institute for Science and International Security)
- IS-IS (Intermediate System to Intermediate System (routing protocol))