| Acronym | Definition |
|---|
| ISE | International Securities Exchange |
| ISE | Industrial and Systems Engineering |
| ISE | Irish Stock Exchange |
| ISE | Information Sharing Environment (US government sharing of terrorism information) |
| ISE | Istanbul Stock Exchange |
| ISE | Ion Selective Electrode |
| ISE | Fraunhofer Institut für Solare Energiesysteme (German: Fraunhofer Iinstitute for Solar Energy Systems) |
| ISE | Information Systems Engineering |
| ISE | In-Sink-Erator |
| ISE | Internal Server Error |
| ISE | International Student Exchange |
| ISE | Independent Security Evaluators |
| ISE | Integrated Software Environment (programmable logic design tool in electronics industry) |
| ISE | Islamabad Stock Exchange |
| ISE | Istituto per lo Studio degli Ecosistemi (Italian) |
| ISE | Institute for Social Ecology |
| ISE | Institute for Shipboard Education |
| ISE | It's So Easy (Guns N' Roses song) |
| ISE | Ion Specific Electrode |
| ISE | Intelligent Synthesis Environment (NASA) |
| ISE | In-Service Engineering |
| ISE | International Submarine Engineering Ltd. |
| ISE | International Student Edition (books) |
| ISE | International Symposium on Electrets |
| ISE | Integrated Synthesis Environment |
| ISE | Integrated Square Error |
| ISE | International Sales Europe (Hewlett-Packard) |
| ISE | Integrated Summary of Efficacy (new drug investigation) |
| ISE | Independent Safety Evaluation |
| ISE | Ingeniero en Sistemas Electrónicos (Spanish: Electronic Systems Engineer) |
| ISE | Integrated Shipbuilding Environment |
| ISE | Intelligence Support Element |
| ISE | International Sign Expo |
| ISE | Integrated Storage Elements |
| ISE | Internet Services Engine (Cisco) |
| ISE | Improved Seed Enterprise |
| ISE | Intermediate Support Element (US DoD) |
| ISE | Information Security Evaluation |
| ISE | Integrated Switching Element |
| ISE | Intensive School of English and Business Communication |
| ISE | Incorporated Self Employed |
| ISE | Input Signal Equalization |
| ISE | Ideas in Science and Electronics, Inc. |
| ISE | Instrument Systems Engineer |
| ISE | Integrated Space Experiment |
| ISE | Inhibited Spontaneous Emission |
| ISE | Initial Support Element |
| ISE | Integrated Station Executive |
| ISE | Independent Ships Exercise |
| ISE | International Space Explorer |
| ISE | Individual Ship Exercise |
| ISE | Installation Site Engineering (Ciena) |
| ISE | Intercept System Environment |
| ISE | Irish School of Economics |
| ISE | Internal Speed Expansion |
| ISE | Integrated Ship Electronics |
| ISE | International School of Estonia |
| ISE | Intelligent Storage Element (computing) |
| ISE | In-Store Experience |
| ISE | Instruction Set Extension (computer engineering) |
| ISE | Institute for Science Education (various locations) |