| Abbreviation | Definition |
|---|---|
| ISD | Indiana School for the Deaf |
| ISD | International School at Dundee |
| ISD | International School of Dakar |
| ISD | Issaquah School District |
| ISD | School District |
| ISDA | Illinois School District Agency |
| ISDA | Independent Schools Debating Association |
| ISDF | Independence School District Foundation |
| ISDI | Indian School of Design and Innovation |
| ISDI | Indian School of Design Innovation |
| ISDL | International School of Dravidian Linguistics |
| ISDN | Independent School Diversity network |
| ISDO | International School Development Organization |
| ISDP | In School Day Program |
| ISEB | Independent Schools Examination Board |
| ISECS | International Studies Elementary Charter School |
| ISEE | Independent School Entrance Examp |
| ISES | Indian Springs Elementary School |
| ISES | Individual Student Enrollment System |
| ISF | International School Frankfurt |